Sulayman I. He also started to established a trading challenge to the already rich House of Rajah Lakandula in Tondo. Islam was further strengthened by the arrival of Muslim traders and from Jolo, Mindanao, Malaysia, and Indonesia. Rajah Salalila and Rajah Matanda in the south (now the Intramuros district) were installed as Muslim rajas by converted Muslims and the Buddhist-Hindu settlement was under Lakandula in northern Tundun (now Tondo, Manila.) Influences of Zheng He's voyages The Chinese Muslim mariner Zheng He is credited with founding several Chinese Muslim communities in Mandaue and along the shores of Lapu-lapu, the Bohol Peninsula, and the Philippines during China's early Ming dynasty. These Muslims supposedly followed the Badjao school in the Chinese language. This Chinese Muslim community was led by Hajji Yan Ying Yu, who urged his followers to assimilate and take local names. Spanish encounter Rajah Sulayman was the Rajah of Maynila, a polity at the mouth of the Pasig River where it meets Manila Bay, at the time the Spanish forces first came to Luzon. Sulayman resisted the Spanish forces, and thus, along with Rajah Matanda and Lakan Dula, was one of three Rajahs who played significant roles in what was the Spanish conquest of their polities of the Pasig River delta in the early 1570s. Moro (derived from the Spanish word meaning Moors) is the appellation inherited from the Spaniards, for Filipino Muslims of Mindanao. The Spanish distinguished the Moro from the Indios, which referred to the Christianised people of Luzon and the Visayas. Islam continued to spread in Mindanao, from centers such as Sulu and Cotabato. The Muslims seek to establish an independent Islamic province in Mindanao to be named Bangsamoro. The term Bangsamoro is a combination of an Old Malay word meaning nation or state with the Spanish word Moro which means Muslim. A significant Moro Rebellion occurred during the Philippine–American War. Conflicts and rebellion have continued in the Philippines from the pre-colonial period up to the present. Other related issue with the Moro secession is the territorial dispute of eastern Sabah in Malaysia which claimed by the Sultanate of Sulu as their territory. The Moros have a history of resistance against Spanish, American, and Japanese rule for over 400 years. The violent armed struggle against the Spanish, Americans, Japanese and Filipinos is considered by current Moro (Muslim) leaders as part of the four centuries long "national liberation movement"