Belinus the Great was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He was the son of Dunvallo Molmutius and brother of Brennius. He was probably named after the ancient god Belenus. In Welsh he is known as Beli Mawr. Earning the crown In an effort to win the crown of Britain, Brennius and Belinus waged war between each other to determine who should succeed their father. Many battles were fought between the two brothers until a time came when their friends intervened and a compromise was decided upon. Belinus became the King of the Britons with Brennius as king of the north. Five years later, Brennius wed the daughter of the King of Norway without consulting Belinus. Belinus invaded Northumberland and seized Brennius's land. The King of Denmark with Brennius's new wife landed in Britain by accident. Belinus imprisoned them and awaited the return of his brother. Brennius landed in Albany and demanded th