Background
He was the son of King Wu of Zhou and the younger brother of King Cheng of Zhou.
唐叔虞, 姓姬名虞子於
He was the son of King Wu of Zhou and the younger brother of King Cheng of Zhou.
The State of Tang would later be renamed Jin by Shu Yu"s son and successor, Xie. Shortly after the establishment of the Zhou Dynasty, King Wu of Zhou died. In the year that King Cheng of Zhou ascended the throne, the people of a land called Tang (唐) rebelled, so the Duke of Zhou conquered them.
King Cheng of Zhou suddenly picked up a parasol tree leaf and gave it to Prince Yu.
Then he said playfully," Let this be a proof that I will make you a feudal lord." Prince Yu happily got the leaf and he then told this to the Duke of Zhou. The Duke of Zhou thought that whatever the young King Cheng of Zhou said should not be taken lightly since he was the king.
The Duke of Zhou approached the young king and asked him if it were true. Shu Yu"s son and successor, Xie, moved the capital Jiang (绛) nearer to the Jin River and renamed the state Jin.