List of nicknames of European royalty and nobility: G
- Gabhran of Dalriada the Treacherous
- Gabrielle d'Estrees la Belle Gabrielle
- Gaius Marius the Third Founder of Rome 1
- Galeazzo Maria Sforza the Force of Destiny
- Galeotto Franciotti della Rovere Cardinal della Rovere 2
- Galeotto Novella Malatesta Belfiore 3
- Gall Mac Sgillin the Foreigner 4
- Gallienus the Barracks Emperor, the Emperor of the Army
- Gallus the Barracks Emperor, the Emperor of the Army
- Galswintha the Visigoth
- Garcia I of Castile He of the White Hands
- Garcia V of Navarre He of Najera
- Garcia Galindez of Aragon the Bad
- Garcia I of Castile of the White Hands
- Garcia IV of Pamplona the Trembler, the Trembling, the Tremulous
- Garcia V of Navarre the Restorer
- Garcia II of Castile o Infante
- Garcia II Sanchez of Gascony the Bent
- Gaston II of Foix "El Paladino"
- Gaston VI, Viscount of Bearn, 1173–1215
- Gaston III, Captal de Buch (d.1536) the Lame
- Gaston IV of Béarn the Crusader
- Gaston of Foix, Duke of Nemours the Lightning of Italy, the Thunderbolt of Italy 5 6, the Dove 7
- Gaston III of Foix-Béarn Gaston Phoebus
- Gaston VI, Viscount of Bearn, 1173–1215 the Young, the Younger
- Gaston IV of Bearn the Crusader
- Gauthier I, Viscount of Tournai ;;Pulechel'' 8
- Gauthier II, Count of Valois the White 9
- Gauthier I, Count of Vexin and Amiens Oriflam
- Gauthier, Count of Rethel, 1124–1158 "le Dévot"
- Gauthier II of Enghien (d.1271) the Great
- Gebhard Leberecht von Blücher Marshall Forward 10
- Gebhard Leberecht von Blücher Field Marshal Forward 11
- Geiseric Virga Dei 12
- Geiseric the Lame, the Rod of God 13
- Geoffrey of Lusignan, Lord of Moncontour Big-Tooth 14
- Geoffrey I of Penthievre Boterel 15
- Geoffrey II of Penthievre Boterel 16
- Geoffrey III of Anjou the Bearded
- Geoffrey III of Penthievre Boterel 17
- Geoffrey I, Count of Angouleme (d.1048) Taillefer
- Geoffrey I of Anjou the Graycloak, Greymantle, Greyhide 18
- Geoffrey III, Count of Vendome, 1102–1137 the Graycloak, Greymantle, Greyhide
- Geoffrey III, Lord of Joinville the Fat 19
- Geoffrey II (c1095-1142), Duke of Lower Lorraine, Godfrey of Brabant, the Younger 20
- Geoffrey IV (d.1190), Lord of Joinville the Young, the Younger 21
- Geoffrey de Mandeville the Young, the Younger
- Geoffrey V, Count of Anjou the Fair
- Geoffrey of Sable (d.997) the Old
- Geoffrey I (d.1080), Lord of Joinville the Old 22
- Geoffrey III (d.1188), Lord of Joinville the Old 23
- Geoffrey I, Lord of Preuilly (d.1067) the Hammer
- Geoffrey II of Anjou the Hammer
- Geoffrey III, Duke of Brabant (1140–1190) the Brave
- Geoffrey V, Count of Anjou Geoffrey Plantagenet
- Geoffrey de Mandeville the Surety, the Magna Carta Baron 24
- Geoffrey de Saye the Surety, the Magna Carta Baron 25
- Geoffroy of Harcourt (d.1356) the Lame
- Geoffrey IV, Lord of Joinville le Valet 26
- Geoffrey V, Lord of Joinville le Trouillard 27
- Geoffroi of Montmorency (d. after 1080) the Rich
- George I of Great Britain the Turnip-Hoer , Geordie Whelps, George the Guelph, Turnip Head28
- George I of Great Britain German George 29
- George I, Landgrave of Hesse-Darmstadt, 1567–1596 the Pious
- George II of Abkhazia the Builder of Churches
- George II of Dmitrov (1462–1472) the Young, the Younger
- George II, Duke of Silesia (1523–1586) the Pious
- George II, Prince of Anhalt-Dessau, 1471–1509 the Strong
- George II, King of Kakheti, 1511–1513 the Bad
- George II, Despot of Serbia, 1485–1496 Maximus
- George II of Saxe-Meiningen Theaterherzog, the Theater Duke, 30
- George III of the United Kingdom Farmer George, the Farmer-King, Old Nobs 31 32
- George III, Truchsess of Waldburg in Wolfegg and Zeil (1488–1531) der Bauernjörg
- George IV of Georgia the Light of the World, the Resplendent
- George IV of the United Kingdom Prince Florizel, Prinny, the Prince of Whales, Admiral George Carlton, the Adonis of 50, the Fat Adonis of 50, Fum the Fourth, the Fat Adonis of Forty, the First Gentleman of Europe 33 3435 36
- George V of Georgia the Magnificent, the Illustrious, the Shadow King of Tbilisi, the Brilliant
- George V of the United Kingdom the Sailor-Prince 37
- George V, Count of Nassau-Dillenburg, 1620–1623 the Old
- George VI the Minor the Illustrious, the Minor
- George VI of the United Kingdom the Unexpected King, Prince Bertie, My Dear Bertie 3839 40
- George, Duke of Saxony the Bearded, George with the Beard
- George of Amboise (1440-1510) the Cardinal
- George, Margrave of Brandenburg-Ansbach the Confessor 41
- George of Bavaria the Rich
- George of Podebrady the Hussite King 42
- George de Vernon the King of the Peak 43 44
- George, Duke of Saxony, 1500-1539 the Rich
- George Berkeley, 8th Lord Berkeley the Traveller
- George Castriota Skanderbeg
- George FitzGerald, 16th Earl of Kildare the Fairy Earl 45
- George Frederick II of Hohenlohe the Young, the Younger
- George Canning the Zany of Debate 46
- George Villiers, 2nd Duke of Buckingham Zimri
- George Villiers, 1st Duke of Buckingham Steenie 47
- George Villiers, 4th Earl of Jersey the "Prince of Maccaronies 48
- George, Margrave of Brandenburg-Ansbach the Pious 49
- George of Nuremberg the Pious
- George of Rostov (d.1155) the Long-Armed
- George Albert II of Erbach the Posthumous
- George Frederick I of Hohenlohe the Elder
- George Brankovic, Despot of Serbia, 1458–1459 the Blind
- George Monck, 1st Duke of Albemarle Black George, Honest George 50 51
- George Robert FitzGerald the Fighting FitzGerald 52
- George Savile, 1st Marquess of Halifax Trimmer 53
- George Sinclair, 5th Earl of Caithness Wicked Earl George 54
- George Villiers, 1st Duke of Buckingham Goliath
- Gerald I of Armagnac Trancaléon
- Gerald IV, Count of Armagnac, 1188–1215 Trancaléon
- Gerald FitzGerald, 3rd Earl of Desmondthe Poet 55
- Gerald FitzGerald, 8th Earl of Kildare the Great Earl of Kildare, Garret the Great, Gearoid Mór 5657
- Gerald FitzGerald, 9th Earl of Kildare Garrett MacAlison, Geroit Oge, Gearóid Óg 58 59
- Gerald FitzGerald, 11th Earl of Kildare the Wizard Earl
- Gerald FitzGerald, 15th Earl of Desmond the Rebel Earl, the Sleeper, the Sleeping Hero, the Sleeping King, Ingens Rebellibus Exemplar 60
- Gerard I of Gelderland Flamens, Flaminius, der Flaminius, the Red
- Gerard I, Prince of Piombino the Deaf 61
- Gerard II, Count of Holstein-Plon, 1290–1312 the Blind
- Gerard II of Guelders the Red
- Gerard II, Count of Wassenberg (1000-1053) Flamens, Flaminius
- Gerard II of Hallermund the Young, the Younger
- Gerard III, Lord of Retz "le Benoist"
- Gerard, Duke of Lorraine the Great
- Gerard, Duke of Lorraine Gerard of Alsace
- Gerhard I of Hallermund the Elder
- Gerhard I, Count of Wassenberg (1055/60–1137) the Tall
- Gerhard II, Count of Guelders, 1118–1134 the Tall
- Gerhard III Count Gert
- Gerhard III of Holstein the Bald Count, the Great
- Gerhard III the Fat
- Gerhard VI of Oldenburg the Quarrelsome
- Gerhard, Count of Oldenburg the Warlike
- Ostmark, 936–965 the Great
- Gertrude of Nivelles the Saint
- Gilbert, Count of Brionne Crispin 62
- Gilbert de Clare, 5th Earl of Hertford the Surety, the Magna Carta Baron 63
- Gilbert de Clare, 7th Earl of Hertford the Man of Gentlest Blood and Most Powerful Amongst the English 64
- Gilbert de Clare, 7th Earl of Hertford the Red 65 66
- Gilbert de Clare, 7th Earl of Hertford the Red Earl 67
- Gillean, 1st Chief of MacLean (1210–1300) Gillean of the Battle Axe (na Tuiaghe) 68
- Gillebride Mac Gilledomnan Gillebride of the Cave
- Gilles of Roeulx Rigaud 69
- Gilles de Rais Giles de Laval, Gilles de Retz, Blue Beard, Barbe-Bleue, Marshal de Retz'' PLANTAGENET
- Giorgi VI the Minor the Short, the Little, the Small
- Giorgi Saakadze the Great Mouravi 70
- Giorgio Cornaro the Father of the County 71
- Giorgio Cornaro (1523-1543) Zorzetto, Giorgetto (Little Giorgio): 72
- Giorgio Cornaro (1517-1554) Zorzone, Giorgione (Big Giorgio): 73 74
- Giovanni Borgia the Child of Rome, Infans Romanus 75
- Giovanni da Barbiano, Count of Cunio (d.1399) Fulmine di Guerra
- Giovanni dalle Bande Nere the Invincible 76
- Giovanni de' Medici (1467–1498) il Popolano
- Giovanni Malatesta Gianciotto, Giovanni lo Sciancato 77, the Lame
- Giovanni Lambert, Prince of Salerno (950–999) le Toscan
- Giovanni dalle Bande Nere Giovanni of the Black Bands, With the Black Bands 78
- Giovanni I, Lord of Camerino (d.1387) Spaccaferro 79
- Giric of Scotland Gregory the Great
- Giulia Farnese the Beautiful
- Giuliano di Lorenzo de' Medici Popolesco (Man of the People), the Man of the People 80
- Gleb I of Kiev (1010–1015) the Saint
- Gleb II of Riazan (d.aft.1237) the [...]
- Gloria, Princess of Thurn and Taxis Princess TNT, the Punk Princess 81 82 83 84
- [[Glun, King of Dublin, 981–?the Iron Knee''
- Godfred V of the Isle of Man the Black 85
- Godfrey of Bouillon the Baron of the Holy Sepulchre 86
- Godfrey I of Leuven, Duke of Lower Lotharingia the Bearded
- Godfrey II, Duke of Lower Lorraine the Childless
- Godfrey II, Count of the Gatinais Ferreol
- Godfrey III, Duke of Lower Lorraine the Bearded
- Godfrey III of Leuven, Duke of Lower Lotharingia the Babe
- Godfrey III of Leuven the Brave 87
- Godfrey, Lord of Friesland (d.885) the Norman 88
- Godfrey of Bouillon the Crusader King
- Godfrey of Bouillon the Protector of the Holy Sepulcher 89
- Godfrey I, Count of Verdun the Old
- Godfrey I, Count of Verdun the Captive, the Prisoner
- Godfrey IV, Duke of Lower Lorraine the Hunchback
- Godred Crovan (Sandals) 90
- Godwin, Earl of Wessex the Kingmaker
- Gonzalvo Hernandez de Cordova (1443–1515) the Great Captain
- Gordian I the Barracks Emperor, the Emperor of the Army
- Gordian II the Barracks Emperor, the Emperor of the Army
- Gordian III the Barracks Emperor, the Emperor of the Army
- Gorm of Denmark the Old
- Gosifrid de Bec the Marshal
- Gossuin, Lord of Avesnes the Blind 91
- Gostomysl of Novgorod (8??–859) ''the Reasonable
- Gothelo I, Duke of Lorraine the Great
- Gothelo II, Duke of Lower Lorraine Ignavus ([...]), the Sluggard
- Götz von Berlichingen "Gotz of the Iron Hand 92
- Gozmar III of Ziegenhain (1168–1184) the Red
- Grace O'Malleythe Pirate Queen of Connaught 93, the Pirate Queen of Connemara 94
- Grace O'Malley the Nurse of All Rebellions 95
- Grigori Alexandrovich Potemkin Cyclops 96
- Grace O'Malley Bald Grace (Grainne Mhaol, Granuaile), the Irish Sea Queen, the Queen of Clew Bay, the Dark Lady of Doona 9798 99100
- Grace O'Malley Grainne Mhaol (Bald Grace, Cropped Hair) 101
- Gruffydd ap Llywelyn the Head and the Shield of the Britons 102
- Gradlon of Cornouaille the Great
- Gruffydd (1110–?) the Tall
- Grey Brydges, 5th Baron Chandos the King of the Cotswolds 103
- Grimoald the Elder the Elder
- Gruoch of Scotland Lady Macbeth
- Guaimar IV of Salerno the Iron Hand 104
- Guaram III, King of Georgia, 693–748 the Young, the Younger
- Gudrød the Hunter the Proud
- Gudrod Ljome, son of Harald I of Norway
- Gudrød the Hunter the Hunter
- Gudrod Skiria, son of Harald I of Norway
- Guerao III, Viscount of Girona, 1145–1161 the Troubadour, the Minstrel
- Guglielmo Cybo, Palatine Count of the Holy Roman Empire
- Gui-Aldonce (1619–1646) "le Chevalier de Chabot"
- Gui-August de Rohan (1683–1760) le Chevalier de Rohan
- Guichard IV of Beaujeau (d.1216) the Great
- Guichard VI of Beaujeau (d.1331) the Great
- Guido da Montefeltro the Fox
- Guigues I, Count of Albon (1001–1070) the Old
- Guigues V of Albon (d.1063) the Old
- Guigues II, Count of Albon & Grenoble (1025–1095) the Fat
- Guigues VI, Count of Albon & Grenoble the Fat
- Guigues III, 1st Count of Albon (c.1050–1133) the Count
- Guigues VII of Albon (1068–1125) ''Crassus'
- Guillaume aux Blanches Mains the Whitehanded 105
- Guillaume Marie Anne Brune the Savior of the Batavian Republic
- Guillaume Dode de la Brunerie the Vauban of Modern Times 106
- Gundovald Ballomer
- Guntram, Count of Altenburg (d.970) the Rich
- Guntrum, Count of Alsace, mid 10th century the Red
- Gustav III of Sweden the Theater King 107
- Guy II of Montlhéry 108
- Gunther IV of Barby the Fair
- Günther von Schwarzburg
- Gunther (d.1284), Count of Lindow-Ruppin Gunther of Arnstein
- Gurgen II, King of Georgia, 918–941 the Great
- Gustav IV Adolf of Sweden Colonel Gustavsson 109
- Gustav I Vasa of Sweden the Father of the County
- Gustav III of Sweden the Enlightened Despot
- Gustavus Adolphus of Sweden the Golden King of the North 110
- Gustavus Adolphus of Sweden the Snow King 111 112
- Gustavus Adolphus of Sweden the Savior of Protestants
- Gustavus Adolphus of Sweden "The Lion of the North"
- Gustavus Adolphus of Sweden the Great
- Gutierre Rodriguez of Castro (d.1194) el Escalabrado
- Guy II of Laval the Bald
- Guy, Count of Boulogne the Whitehanded
- Guy VIII, Lord of Laval and Count of Caserta (d.1323) the Iron Cross
- Guy Auguste de Rohan-Chabot Chevalier de Rohan
- Guy of Saint Pol Candavene
- Guy II of Montlhéry Trousseau, Troussel 113
- Guy of Dampierre
- Guy de Beauchamp, 10th Earl of Warwick the Black Dog of Ardennes, the Black Cur of Arden 114 115
- Guy Pallavicini, Lord of Bodonitsa Markezopoulos 116
- Guyonne of Laval (1524–1567), Countess of Laval & Montfort the Mad
- Gwladus ferch Llywelyn the Dark, the Dark-Eyed
- Gwenllian ferch Gruffydd the Welsh Boudica
- Gwallawc Marchawc Trin, King of Elmet the Battle Horseman
- Gwrast Lledlwm, King of Rheged the Ragged (Lledlwm)
- Gyda of Hordaland den Storlåtne Møya (Storlatne Moya), wife of Harald I of Norway
- Gyula Andrássy the Younger the Young, the Younger
- Gyula Andrássy"Le Beau Pendu" 117
- Grand Duchess Maria Nikolaevna of Russia Big Bow Wow
- Grand Duchess Anastasia Nikolaevna of Russia the Little Pair (with sister Grand Duchess Maria Nikolaevna of Russia)
- Grand Duchess Maria Nikolaevna of Russia Shvibzik (Eng. Imp)
- Regnal Names
- Gaston III of Foix: Gaston X of Bearn