Goryeo's king, Wang Kŏn, then rejoiced greatly about this and treated that messenger generously and sent him back to Pak.
Later, when Wang Kŏn finally won in attacked the Later Baekje, Pak helped to contribute to the unification of Later Three Kingdoms.
[4] After this, Wang Kŏn rewarded Pak Yong-gyu with land of an area of 1,000 kyŏng (경; 頃).
Wang Kŏn also granted Pak's wife with 35 horses (역마 35필) and gave their two sons government posts.
[6] Since Pak was the one of Threefold Great Rectifers, both him and his wife had a good relationship with Taejo of Goryeo, they regarded and treated each other like siblings.