Isabella I - Queen of Spain (1451 - 1504)
Isabella of Aragon (1243-1247 - 1271)
Isabella of Castile (1355 - 1393)
Isabella of Hainault and Flanders (1170 - 1190)
Isabella of Portugal ( - )
Ivar - Jarl of the Uplanders ( - )
Jacques d'Avesnes - Lord of Avesnes (ABT. 1150 - 1191)
Jacquetta of Luxembourg ( - )
James I "The Conqueror" - King of Aragon (1207 - 1276)
James I - King of Scotland (1394 - 1437)
James II - King of England (1633 - ABT. 1688)
James II - King of Scotland (1430 - 1460)
James III - King of Scotland (1451 - 1488)
James IV - King of Scotland (1473 - 9 Sep 1513)
James V - King of Scotland (1512 - 1542)
James VI\I - King of Scotland\England (19 Jun 1566 - 1625)
Jaroslav I - Grand Prince of Kiev (978 - 1054)
Jean (John) - Count of Ponthieu (ABT. 1140 - 30 Jun 1191)
Jean II d'Avesnes - Count of Hainault (1247 - 1304)
Jean d'Avesnes - Count of Hainault (1218 - 1257)
Jean\John I - Seigneur de la Fleche ( - 1097)
Jeanne ( - )
Jeanne de Dammartin ( - )
Jeanne de Valois (ABT. 1294 - 1342)
Jimena ( - ABT. 1115)
Joan ( - )
Joan ( - 1199)
Joan ( - )