John I of Castile
King of Castille and Leon (1358-1390) [1]
Documented descendants
6304
Titles & positions
- Lord of Biscay [1]
- Lord of Biscay [1]
- Lord of Molina [1]
- Lord of Cuellar [1]
- King of Castile [1]
- King of León [1]
- King of Galicia [1]
- former Monarch of Castile and Leon (1379 – 1390) [1]
House
Religion
Sources
- Wikidata Q310421 (retrieved 1 Nov 2026)