Saul’s son had two men who were leaders of raiding parties. One was named Baanah and the other Rechab; they were sons of Rimmon the Beerothite of the tribe of Benjamin—Beeroth is considered part of Benjamin,
Jewish Publication Society of America Version (JPS1917) - 2 Samuel 4:2 >And Saul's son had two men that were captains of bands; the name of the one was Baanah, and the name of the other Rechab, the sons of Rimmon the Beerothite, of the children of Benjamin; for Beeroth also is reckoned to Benjamin;