Son of Er, of the tribe of Judah.
1 Chronicles 4:21The descendants of Shelah), son of Judah): Er the father of Rega, Laadah the father of Mareshah, and the clans of the house of the linen workers at Beth Ashbea.
1 Chronicles 4:12Eshton was the father of Beth-rapha, Paseah and Tehinnah the father of Ir-nahash. These were the men of Rega.