1 Chronicles 1:50
And when Baalhanan was dead, Hadad reigned in his stead: and the name of his city was Pai; and his wife's name was Mehetabel, the daughter of Matred, the daughter of Mezahab. Hadad: or, Hadar Pai: or, Pau

Genesis 36:39
And Baalhanan the son of Achbor died, and Hadar reigned in his stead: and the name of his city was Pau; and his wife's name was Mehetabel, the daughter of Matred, the daughter of Mezahab. Hadar, Pau: or, Hadad, Pai: after his death was an Aristocracy