Succession
Succeeds as King of Leon & Castille
Role range: 1379-1390
Historical biography archive · Updated 2026-11-03
John I Biography and Timeline
Follow John I through 9 dated historical records for Spain.
John I, historical timeline
A chronological timeline drawn from matching World History Database records.
9Distinct records
1 of 1Page
1379–1388Years on this page
1379
1383
Marriage
Marries Betriz, daughter of Ferdinand of Portugal
Role range: 1379-1390
Invasion of Portugal
Invades Portugal to unite the thrones of Castille & Portugal
Role range: 1379-1390
Siege of Lisbon
Invades Portugal to unite the thrones of Castille & Portugal
Role range: 1379-1390
1384
Marriage
Marries Beatrix the Portuguese infanta
Role range: 1379-1390
Rule of Portugal
On Ferdinands death invades then rules Portugal
Role range: 1379-1390
Siege of Lisbon
Leads the sieges of Lisbon
1385
Battle of Aljubarotta
Defeated by the deposed John I of Portugal & loses the Portuguese throne
1388
Treaty of Bayonne
John of Gaunt renounces his claim to the Castilian throne
Role range: 1379-1390
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.