Question: Who is the mother-in-law of Guy Of Lusignan?
Sentence (from "Guy of Lusignan"): As the health of his brother-in-law, Baldwin IV, deteriorated, Guy was appointed regent for his stepson by Sibylla, Baldwin V. Baldwin IV died in 1185, followed shortly by Baldwin V in 1186, leading to the succession of Sibylla and Guy to the throne.
Relevant evidence: No