of the Erythraean Sea as a port somewhere north of Muziris is identified with Kannur. The kingdom of Ezhimala had jurisdiction over two Nadus - The coastal Poozhinadu and the hilly eastern Karkanadu. According to the works of Sangam literature, Poozhinadu consisted much of the coastal belt between Mangalore and Kozhikode. Karkanadu consisted of Wayanad-Gudalur hilly region with parts of Kodagu (Coorg). It is said that Nannan, the most renowned ruler of Ezhimala dynasty, took refuge at Wayanad hills in the 5th century CE when he was lost to Cheras, just before his execution in a battle, according to the Sangam works. Early Middle Ages Ezhimala kingdom was succeeded by Mushika dynasty in the early medieval period, most possibly due to the migration of Tuluva Brahmins from Tulu Nadu. The Mushika-vamsha Mahakavya, written by Athula in the 11th century, throws light on the recorded past of the Mushika Royal Family up until that point. The Indian anthropologist Ayinapalli Aiyappan states that a powerful and warlike clan of the Bunt community of Tulu Nadu was called Kola Bari and the Kolathiri Raja of Kolathunadu was a descendant of this clan. The Kolathunadu (Kannur) Kingdom at the peak of its power, reportedly extended from Netravati River (Mangalore) in the north to Korapuzha (Kozhikode) in the south with Arabian Sea on the west and Kodagu hills on the eastern boundary, also including the isolated islands of Lakshadweep in the Arabian Sea. An Old Malayalam inscription (Ramanthali inscriptions), dated to 1075 CE, mentioning king Kunda Alupa, the ruler of Alupa dynasty of Mangalore, can be found at Ezhimala (the former headquarters of Mushika dynasty) near Cannanore, Kerala. The Arabic inscription on a copper slab within the Madayi Mosque in Kannur records its foundation year as 1124 CE. In his book on travels (Il Milione), Marco Polo recounts his visit to the area in the mid 1290s. Other visitors included Faxian, the Buddhist pilgrim and Ibn Batuta, writer and historian of Tangiers. Late Middle Ages Until the 16th century CE, the Kasargod town was known by the name Kanhirakode (may be by the meaning, 'The land of Kanhira Trees') in Malayalam. The Kumbla dynasty, who swayed over the land of southern Tulu Nadu wedged between Chandragiri River and Netravati River (including present-day Taluks of Manjeshwar and Kasaragod) from Maipady Palace at Kumbla, had also been vassals to the Kolathunadu, before the Carnatic conquests of Vijayanagara