to whatever terms Calicut might dictate. Cannanore officially transferred the regions already occupied to Calicut and certain Hindu temple rights. Foreign accounts also corroborate the distinct identity of Kolathunadu. Marco Polo, who visited Malabar coast in the 12th century, noticed the independent status of the king of this region. The 14th century narrative of Ibn Battuta refers to the ruler of this region as residing at a city called Balia Patanam. This offers a clue that by this time, the capital of Kolathunadu had shifted from Ezhil mala to Balia Patanam, a town located south of Ezhil mala. In the 16th century, a Portuguese official Duarte Barbosa also mentions Balia Patanam ("Balia Patam" in European records) as the residence of the king of Cannanore. Until the 16th century CE, 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 kingdom of North Malabar, before the Carnatic conquests of Vijayanagara Empire. The Kumbla dynasty had a mixed lineage of Malayali Nairs and Tuluva Brahmins. They also claimed their origin from Cheraman Perumals of Kerala. Francis Buchanan-Hamilton states that the customs of Kumbla dynasty were similar to those of the contemporary Malayali kings, though Kumbla was considered as the southernmost region of Tulu Nadu. During the 17th century, Kannur was the capital city of the only Muslim Sultanate in the Malabar region - Arakkal - who also ruled the Laccadive Islands in addition to the city of Kannur. The port at Kozhikode held the superior economic and political position in medieval Kerala coast, while Kannur, Kollam, and Kochi, were commercially important secondary ports, where the traders from various parts of the world would gather. The Portuguese arrived at Kappad Kozhikode in 1498 during the Age of Discovery, thus opening a direct sea route from Europe to India. The St. Angelo Fort at Kannur was built in 1505 by Dom Francisco de Almeida, the first Portuguese Viceroy of India. Administration The political lordship of the original Kingdom of Kolattiri was partitioned along various matrilineal-divisions of the Kolattiri family and had rulers of the respective parts or Kũrvāzhcha (part-dominions) namely Kolattiri, Tekkālankũr, Vadakkālankũr, Naalāmkũr, and Anjāmkũr.