In the reign of Ordoño I of Asturias (850–866), the kingdom began to be known as that of León. In 910, an independent Kingdom of León was founded when the king of Asturias divided his territory amongst his three sons.

Below follows a list of Leonese monarchs. It is, in part, a continuation of the list of Asturian monarchs.

Kings of León

Astur-Leonese dynasty

Jiménez Dynasty

Picture	Name	Birth	Reign	Death	Notes
	Ferdinand I the Great	1017	1037–24 December 1065	24 December 1065
	Alfonso VI (first time)	before June 1040	24 December 1065 – January 1072	29 June/1 July 1109	deposed by brother (restored later the same year)
	Sancho II	1036/1038	January 1072 – 6 October 1072	6 October 1072	also king of Castile (1065–1072)
	Alfonso VI (second time)	before June 1040	6 October 1072 – 29 June/1 July 1109	29 June/1 July 1109	also king of Castile (1072–1109)
	Urraca	1082	1109 – 8 March 1126	8 March 1126	also queen of Castile (1109–1126)

House of Burgundy

The follow dynasts are descendants, in the male line, of Urraca's husband, Raymond of Burgundy.

Picture	Name	Birth	Reign	Death	Notes
	Alfonso VII the Emperor	1 March 1105	1135 – 21 August 1157	21 August 1157	also king of Galicia (1111–1157) and king of Castile (1126–1157)
	Ferdinand II	1 March 1137	21 August 1157 – 22 January 1188	22 January 1188
	Alfonso IX	15 August 1171	22 January 1188 – 23/24 September 1230	23/24 September 1230
	Sancha & Dulce	1191/1192	23/24 September 1230 – 11 December 1230	before 1243	de jure co-monarchs
All kings hereafter were also kings of Castile
	Ferdinand III the Saint	30 July or 5 August 1199	11 December 1230 – 30 May 1252	30 May 1252	also king of Castile from 1217, canonised in 1671
	Alfonso X the Learned	23 November 1221	30 May 1252 – 4 April 1284	4 April 1284
	Sancho IV the Brave	1257 or 1258	4 April 1284 – 25 April 1295	25 April 1295
	Ferdinand IV the Summoned	6 December 1285	25 April 1295 – 7 September 1312	7 September 1312
	Alfonso XI the Just	13 August 1311	7 September 1312 – 26/27 March 1350	26/27 March 1350
	Peter the Cruel	30 August 1334	26/27 March 1350 – 23 March 1369	23 March 1369

House of Trastámara

Henry II was the illegitimate son of Alfonso XI. He was made duke of Trastámara.

Picture	Name	Birth	Reign	Death	Notes
	Henry II	13 January 1334	1369–1379	29 May 1379
	John I	24 August 1358	1379–1390	9 October 1390
	Henry III the Infirm	4 October 1379	1390–1406	1406
	John II	6 March 1405	1406–1454	20 July 1454
	Henry IV the Impotent	5 January 1425	1454–1474	11 December 1474
	Isabella I the Catholic	22 April 1451	1474–1504	26 November 1504
	Ferdinand V the Catholic	10 March 1452	1474–1504	23 January 1516
	Joanna the Mad	6 November 1479	1504–1555	12 April 1555	She was regarded insane. Her reign was presided over by two co-monarchs (Philip I of Castile and Charles I of Spain) and a regent (Ferdinand the Catholic).
Regent
	Ferdinand V the Catholic	March 10, 1452	1506–1516	January 23, 1516

House of Habsburg

Picture	Name	Birth	Reign	Death	Notes
	Philip I the Handsome	July 22, 1478	1504–1506	September 25, 1506
	Charles I the Emperor	24 February 1500	1516–1556	21 September 1558

Family tree

The colors denotes the monarchs from the:

000 - Astur-Leonese Dynasty; 000 - Jiménez dynasty; 000 -House of Burgundy

—— The solid lines denote the legitimate descents

– – – - The dashed lines denote a marriage

· · · · The dotted lines denote the liaisons and illegitimate descendants