List of Castilian monarchs
- See also List of Castilian consorts
Kings of Castile 
|Ferdinand I||The Great||1037||27 December 1065||also King of León|
|Sancho II||The strong||27 December 1065||6 October 1072|
|Alfonso VI||The Brave||6 October 1072||30 June 1109||also King of León|
|Urraca||30 June 1109||8 March 1126||also Queen of León|
The follow dynasts are descendants, in the male line, of Urraca's first husband, Raymond of Burgundy.
|Alfonso VII||The Emperor||10 March 1126||21 August 1157||also King of León|
|Sancho III||The Desired||21 August 1157||31 August 1158|
|Alfonso VIII||The Noble||31 August 1158||6 October 1214|
|Henry I||6 October 1214||6 June 1217|
|Berengaria||The Great||6 June 1217||30 August 1217||abdicated in favor of her son, Ferdinand III; died 1246|
|Ferdinand III||The Saint||30 August 1217||30 May 1252||also King of León from 1230; all later kings were King of León as well|
|Alfonso X||The Wise||30 May 1252||4 April 1284||elected King of the Romans in 1257, a title which he claimed until he renounced it in 1275|
|Sancho IV||The Brave||4 April 1284||25 April 1295|
|Ferdinand IV||The Summoned||25 April 1295||7 September 1312|
|Alfonso XI||The Just||7 September 1312||26 March 1350|
|Peter||The Cruel||26 March 1350||23 March 1369||Killed by Henry II of Castile|
Claimants as King of Castile and Léon 
John of Gaunt claimed the title of King of Castile and Léon by virtue of his marriage to Constance, daughter of Peter of Castile. He conducted several military actions, borrowing heavily from London merchants, to solidify his title, without success.
Henry II was the illegitimate son of Alfonso XI. He was made duke of Trastámara.
|Henry II||The Bastard||23 March 1369||29 May 1379||also claimed the throne from 1366|
|John I||29 May 1379||9 October 1390|
|Henry III||The Infirm||9 October 1390||25 December 1406|
|John II||25 December 1406||21 July 1454|
|Henry IV||The Impotent||21 July 1454||11 December 1474|
|Isabella I||The Catholic||11 December 1474||26 November 1504||reigned jointly with her husband, Ferdinand V|
|Ferdinand V||The Catholic||15 January 1475||26 November 1504||jure uxoris king, jointly with his wife Isabella I|
|Joanna||The mad||26 November 1504||12 April 1555||in name, with her husband Philip I (1504–1506).
in confinement, with regent Archbishop Cisneros (1506-1508).
in confinement, with her father Ferdinand V (1508-1516).
in confinement, with her son Charles I (1516–1555)
|Philip I||The Handsome||26 November 1504||25 September 1506||jure uxoris king ruling on behalf of his wife, Joanna I|
|Charles I||The Emperor||13 March 1516||16 January 1556||jointly with his mother Joanna I in confinement to 1555,
abdicated in favor of his son 1556, died 21 September 1558.
|Philip II||The Prudent||16 January 1556||13 September 1598||son of Charles I and Isabella of Portugal|
|Philip III||The Pious||13 September 1598||31 March 1621||son of Philip II and Anna of Austria|
|Philip IV||The Great||31 March 1621||17 September 1665||son of Philip III and Margaret of Austria|
|Charles II||The Bewitched||17 September 1665||1 November 1700||son of Philip IV and Mariana of Austria|
The first monarch to style himself King of Spain was Philip II. Nevertheless the kingdom of Castile existed on its own right within the Spanish crown and with its own law until the arrival of the Bourbon dynasty after the War of Spanish Succession.
Suggested Reading 
- Barton, Simon. The Aristocracy in Twelfth-Century León and Castile. Cambridge University Press, 1997. Appendix I: "The Counts of Twelfth Century León and Castile", pp. 235–302.
See also 
- List of Leonese monarchs
- List of Navarrese monarchs
- List of Spanish monarchs
- List of Castilian consorts
- Kings of Spain family tree