Lot (Mimas)

Leader of the rebel kings of the north and west. Married Margawse and begat Sir Gawain, Sir Aggravayne, Sir Gaheris.

A crater is a circular depression likely created by an impact event. On Mimas they are named after people from Malory's Le Morte d'Arthur legends (Baines translation), also one crater named for the discoverer of Mimas.