Notable Lapita sites include Teouma on Éfaté, Uripiv and Vao off the coast of Malakula, and Makue on Aore. Several ancient burial sites have been excavated, most notably Teouma on Éfaté, which has a large ancient cemetery containing the remains of 94 individuals. There are also sites — on Éfate and on the adjacent islands of Lelepa and Eretoka – associated with the 16th–17th century chief or chiefs called Roy Mata. (This may be a title held by different men over several generations.) Roy Mata is said to have united local clans and instituted and presided over an era of peace.