Hengest, king of Kent - Any documented children?

Æsc is attested by Bede as being son of Hengest.

Rowena is mentioned by Geoffrey of Monmouth in the 12th century so probably factious

Ebusa mentioned in Historia Brittonum and in the Historia Regum Brittaniae

The Anglo Saxon Chronicle

A.D. 455. This year Hengest and Horsa fought with Wurtgern the king on the spot that is called Aylesford. His brother Horsa being there slain, Hengest afterwards took to the kingdom with his son Esc.
A.D. 457. This year Hengest and Esc fought with the Britons on the spot that is called Crayford, and there slew four thousand men. The Britons then forsook the land of Kent, and in great consternation fled to London.
A.D. 465. This year Hengest and Esc fought with the Welsh, nigh Wippedfleet; and there slew twelve leaders, all Welsh. On their side a thane was there slain, whose name was Wipped.
A.D. 473. This year Hengest and Esc fought with the Welsh, and took immense Booty. And the Welsh fled from the English like fire.

Thanks - I listed the 3 chilren Jason mentioned on the profile. It's Hartwaker we're not finding sources on (someone apparently completed the merge).

Jason, since you know this set of sources better - do you want to take over curatorship?