Question: Where is the castle that John Crabbe defended located?
Sentence (from "John Crabbe (died 1352)"): He defended Berwick Castle for the Scots against English forces in 1318, but after being captured by the English in 1332 assisted the English when they again besieged at Berwick in 1333, and became a loyal servant of Edward III, for whom he also fought at the Battle of Sluys.
Relevant evidence: Yes