1 Chronicles 1:48

When Samlah died, Shaul from Rehoboth on the river succeeded him as king.

(New International Version)

When Samlah died, Shaul of Rehoboth by the River became king in his place.

(New American Standard Bible)

And when Samlah was dead, Shaul of Rehoboth by the river reigned in his stead.

(King James Version)