Laverep, Leverop, Leverserp, Leverzep, Leverzerp, Levezerp, Lonazep, Lonezep, Loverseph, Loverzep, Loverzerph, Loverzeph, Lovezeph, Lovezerp, Verzeppe

This sounds like a variant of the name Lonazep, but Malory places Lonazep Castle near Joyous Garde, while Vulgate II and VII tell us taht Leverzep belonged to the Duke of Cambeninc and place Leverzep on the way from Bedingran (Bedegraine) to Orofoise, Leverzep and Lonazep must be two different castles.

Near Leverzep is the Round Mountain, site of hermitage.