At Xiangyang in 1272 Khubilai Khan was forced to send to his kinsmen in the west for counterweight trebuchets, the latest thing in siege catapults, to breach its walls.

• 在1272年的襄阳抗战中，忽必烈可汗被迫将自己在西部的亲系推上战场以补充兵力围攻大炮攻破城墙。”