《明史·列传·卷一百六十九》
大姓易氏据险要之地以自保。江阴侯吴良准备出兵袭击，召履商议。
大姓易氏保险自守，江阴侯吴良将击之，召履计事。
The 易 clan, a large clan, relied on favorable terrain to protect themselves. The Marquis of Jiangyin, Wu Liang, planned to send troops to attack and summoned Lü to discuss it.