Munhee officially became his wife after Kim Chunchu's wife (Boryang) died of childbirth with their second child. She became his Queen after he was crowned as the 29th King of Silla on year 654. Their child grew up to be King Munmu, who completed the unification of The Three Kingdoms of Korea, 29 years after Queen Seondeok's death. Kim Yushin became the most powerful man in the court during King Muyeol's reign and eventually became a "Sangdaedeung", six years later. His sister Bohee also became one of King Muyeol's wives.