Warin is fairly clearly the father of Richard and the grandfather of Warin who m. Auda de Malbank.  But his precise descent from the Vernons, Richard and Walter, in Domesday is unclear.  In order to show the connection to Domesday, i have entered the most likely descent from Keats-Rohan’s work.  But Ormerod gives a slightly different line, though definitely is seeing much the same people.