He was used as a hostage by Edward twice: first in 1288 to Aragon, secondly in 1294 to the French king, when he managed to escape and flee to England in 1297.
他曾两次被爱德华一世用作人质：1288年为质于阿拉贡，1294年为质于法兰西王国并于1297年逃往英格兰。