皮牢 / Pilao
皮牢 / Pilao enters the wiki through 《资治通鉴·周纪》95丨长平之战后秦国为什么没有灭了赵国（1） as one of the 赵国 places attacked by 王龁 after the 长平之战. It is named with 武安 in the episode’s two-route 《资治通鉴》 account.
The episode’s point is strategic rather than local: Pilao helps show how 秦国 tried to keep pressure on Zhao’s remaining positions before the campaign could move toward 邯郸.