| Sancho III | |
|---|---|
.png) Sancho III of Castile in the Castilian manuscript Compendium of Chronicles of Kings (...) (c. 1312-1325). Currently located at the National Library of Spain | |
| King of Castile and Toledo | |
| Reign | 21 August 1157 – 31 August 1158 |
| Predecessor | Alfonso VII |
| Successor | Alfonso VIII |
| King of the Kingdom of Artajona | |
| Reign | 1153–1157 |
| Predecessor | Urraca the Asturian |
| Successor | Sancho VI of Navarre |
| Born | c. 1134 Toledo |
| Died | 31 August 1158 (aged 23–24) Toledo |
| Burial | |
| Consort | |
| Issue | Alfonso VIII of Castile Infante Garcia |
| House | Castilian House of Ivrea |
| Father | Alfonso VII of León and Castile |
| Mother | Berengaria of Barcelona |
Sancho III (c. 1134 – 31 August 1158), called the Desired (el Deseado),[a] was King of Castile and Toledo for one year, from 1157 to 1158. He was the son of Alfonso VII of León and Castile and his wife Berengaria of Barcelona, and was succeeded by his son Alfonso VIII. His nickname was due to his position as the first child of his parents, born after eight years of childless marriage.
During his reign, the Order of Calatrava was founded. It was also in his reign that the Treaty of Sahagún in May 1158 was decided.
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