Question: Who is the father-in-law of Lady Ma (Qian Yuanguan'S Wife)?
Sentence (from "Lady Ma (Qian Yuanguan's wife)"): Lady Ma (馬夫人, personal name unknown) (890-November 28, 939), formally the Lady Gongmu of Wuyue (吳越國恭穆夫人), was a wife of Qian Yuanguan (King Wenmu)
Relevant evidence: Yes