Rogelim

After David had arrived in Machanayim, Shovi the son of Nachash, from Rabbah of the people of 'Amon; Machir the son of 'Ammi'el from Lo-D'var and Barzillai the Gil'adi from Roglim

Barzillai the Gil'adi had come down from Roglim and passed on to the Yarden with the king to bring him across the Yarden.