one of the mythical kings of Alba, son of Capetus, and father of Agrippa, is said to have been drowned in crossing the river Alba, which was hence called Tiberis after him, and of which he became the guardian god. (Liv. 1.3; Dionys, 1.71; Cic. de Nat. Dcor. 3.20)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890