Grand Prince Danyang
Grand Prince Danyang, born Wang Hu, was a Goryeo royal family member as the second son of Duke Gangyang and grandson of King Chungnyeol. He was promoted repeatedly and later reached the position of a Threefold Great Rectifer. Though his niece, he would eventually become the maternal granduncle of King Gongyang.
Life
In 1320, Wang Hu went to Yuan dynasty and appointed as a congratulatory envoy for the new Yuan emperor Yingzong and sent to Daidu. In the following year, he went to Yuan again for celebrate the proclaim of a new era name and their Empress Dowager's coronation.In 1333, when King Chungsuk, his older half first cousin, stayed in Yuan, Wang Hu became Gwonseohaengseongsa while temporarily take charge of its affairs. After Chungsuk went to Eoyong Hall in Pyongyang, he then brought the National Seal along with assistant chancellor Cho Chŏk and royal secretary Chŏng Ki for the King.
His grandmother, Princess Jeonghwa's older brother was a monk at Donghwa Temple, made several thousand and hundred men as slaves, which Wang Hu benefited a lot. However, when civilians returned as a slaves, Hu tried to inform the Yuan dynasty with cross the Yalu River, but failed after captured by the shackles sent by the Goryeo prime ministers, then returned to Gaegyeong.
In 1352, when Cho Il-sin's rebellion broke out, he invited King Gongmin to his house for a while. One year later, while Gongmin went to Chimwon for did the Chunhyang, Wang Hu attended as Aheongwan.
In 1361, when the northwest was devastated by the invasion of the Red Turbans and Gaeseong was captured, Wang Hu surrendered along with Jeollipanseo Yi An, General Kim Sŏ-gwang. Then, he gave them important military bases, where the land was fertile, where they could live and where there was grain in Gi County. As a result, after the Red Turbans retreated, he and others were impeached by the inspectorate, their land and slaves were confiscated, also his descendants were also sentenced to imprisonment in 1362.