Gran León (UW)

House of Trinidad:
-Isabella I (Crown of Castilla): 427-397 BDC (Co-ruler with Juan II until 406 BDC, Co-ruler with Alfonso XII until 397 BDC)

House of Mendoza:
Juan II (Crown of Arlon): 427-406 BDC (Co-ruler with Isabella I)

Alfonso XII: 406-373 BDC (Co-ruler with Isabella I until 397 BDC)

Juan III: 373-344 BDC

Alfonso XIII: 344-312 BDC

Ferdinand VI: 312-286 BDC

Juan IV: 286-245 BDC

Pedro II: 245-221 BDC

Juan V: 221-187 BDC

Alfonso XV: 187-176 BDC

Pedro III: 176-134 BDC

Isabella II: 134-123 BDC

House of Covides:
Jose I: 123-98 BDC

Pedro IV: 98-76 BDC

Alfonso XV: 76-65 BDC

Juana I: 65-28 BDC (Co-ruled with Felipe I)

House of Manrique:
Felipe I: 65-28 BDC (Co-ruled with Juana I)

Felipe II: 28-27 BDC

Felipe III: 27-15 BDC

Ferdinand VII: 15 BDC-4 DC

Carlos I: 4-30 DC

Amadeo I: 30-35 DC

Carlos II: 35-38 DC

Carlos III: 38-63 DC

Jaime III: 63-74 DC

Juan Carlos I: 74 DC-Present