Sisillius

Sisillius (Welsh: Saessyllt) was the name of three legendary Kings of the Britons as accounted by Geoffrey of Monmouth:


 * Sisillius, one of the younger sons of Ebraucus
 * Sisillius I, successor of King Gurgustius
 * Sisillius II, son of King Guithelin and Queen Marcia
 * Sisillius III, successor of King Oenus