Gewisse
The Gewisse (Old English: [jeˈwisːe] ye-WEES-se; Latin: Geuissæ) were a tribe or ruling clan of the Anglo-Saxons. Their first location, mentioned in early medieval sources, was the upper Thames region, around Dorchester on Thames. However, some scholars suggest that the Gewisse had origins among the ancient Britons at Cair-Caratauc (Old Sarum) in Wiltshire. According to Saxon folklore, the Gewisse were the founders of the kingdom of Wessex.