 The name Kadathanadu refers to as the passing way between Kolathunadu and Kozhikode.Deva Raya II (1424–1446 AD), king of the Vijayanagara Empire, conquered the whole of present-day Kerala state in the 15th century.He defeated (1443) rulers of Venadu (Kollam, Quilon), as well as Kozhikode.