The Muslim conquest reached as far as the Kingdom of Tondo which was supplanted by Brunei's vassal-state the Kingdom of Maynila.[10] Muslim Sultanates had begun expanding in central Philippines in the 16th century, when the Spanish fleet led by Ferdinand Magellan arrived in the Philippines.[11] The Spanish conquest during the 16th century led to Roman Catholicism becoming the dominant religion in most of the Philippines, and Islam a minority religion.[12][13]