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. Just like other contemporary kings of Kerala in the medieval period, The powerful Kolathu Raja also came under the influence of Zamorin later. The Kolathunadu in the late medieval period emerged into independent 10 principalities i.e., Kadathanadu (Vadakara), Randathara or Poyanad (Dharmadom), Kottayam (Thalassery), Nileshwaram, Iruvazhinadu (Panoor, Kurumbranad etc., under separate royal chieftains due to the outcome of internal dissensions. The Nileshwaram dynasty on the northernmost part of Kolathiri dominion, were relatives to both Kolathunadu as well as the Zamorin of Calicut, in the early medieval period. Colonial era Kannur was an important trading center in the 12th century with active business connections with Persia and Arabia. 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. Kannur served as the British military headquarters on India's west coast until 1887. In conjunction with her sister city, Tellicherry, it was the third-largest city on the western coast of British India in the 18th century after Bombay and Karachi. The Arakkal kingdom had right over the city of Kannur and Laccadive Islands in the late medieval period. 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. The Dutch captured the fort from the Portuguese in 1663. They modernized the fort and built the bastions Hollandia, Zeelandia, and Frieslandia that are the major features of the present structure. The original Portuguese fort was pulled down later. A painting of this fort and the fishing ferry behind it can be seen in the Rijksmuseum Amsterdam. The Dutch sold the fort to the king Ali Raja of Arakkal in 1772. The British conquered it in 1790 and used it as one of their major military stations on the Malabar Coast. During the 17th century, Kannur was the capital city of the