Mombasa Mombasa Mombasa () is a seaport city on the coast of Kenya, along the Indian Ocean. It is the country's oldest (circa 900 AD) and second-largest city (after the capital Nairobi), with an estimated population of about 1.4 million people in 2016. Its metropolitan region is the second largest in the country and has a population of approximately 3 million people. Administratively, Mombasa is the county seat of Mombasa County. Mombasa is a regional cultural and economic hub; it has an extra-large port and an international airport, and is an important regional tourism center. Located on the east coast of
Mombasa and defeated the relief force sent by the Portuguese. In 1632 Dom Jeronimo left Mombasa and became a pirate. That year the Portuguese returned and established direct rule over Mombasa. With the capture of Fort Jesus in 1698, the town came under the influence of the Imamate of Oman, subordinate to the Omani rulers on the island of Unguja, prompting regular local rebellions. Oman appointed three consecutive Governors (Wali in Arabic, Liwali in Swahili): Mombasa briefly returned to Portuguese rule by captain-major Álvaro Caetano de Melo Castro (12 March 1728 – 21 September 1729), then four new Omani Liwali until