A Portuguese defensive victory near Trancoso halted a Castilian punitive raid and secured prisoners and plunder recovered from occupied Beira towns.
Key Facts
- Date
- 29 May 1385
- Castilian captains killed
- 6 out of 7
- Castilian outcome
- Utterly routed with very high casualties
- City pillaged
- Viseu, burned and looted by Castilians
- Portuguese tactic
- Dismounted and assumed defensive formation
Location
Cause → Event → Consequence
After the coronation of João of Aviz as John I of Portugal, John I of Castile sent an army into the Portuguese region of Beira as retaliation for Portuguese defiance. The Castilian force pillaged and burned the city of Viseu, taking prisoners and plunder before beginning their return to Castile.
A Portuguese army intercepted the withdrawing Castilian force near Trancoso. The Portuguese dismounted and adopted a defensive formation. The Castilians exhausted themselves in repeated attacks and were ultimately routed, suffering very high casualties with six of their seven captains slain.
The Portuguese victory resulted in the liberation of all captives taken by the Castilians and the full recovery of plunder seized from Portuguese towns. The defeat severely damaged the Castilian punitive expedition and reinforced Portuguese resistance during the succession crisis.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent