Francisco Serrão (died 1521) was a Portuguese explorer and a cousin of Ferdinand Magellan. His 1512 voyage was the first known European sailing east past Malacca through Indonesia and the Indies. He became a member of the Sultan Bayan Sirrullah, the ruler of Ternate, becoming his personal advisor. He remained in Ternate where he died around the same time Magellan died. Serrão served as captain of one of three vessels (and second in overall command under António de Abreu) sent from Malacca by Afonso de Albuquerque to find the Spice Islands of Banda in Maluku in 1511. Banda was the world's only source of nutmeg and mace, spices used as flavourings, medicines, preserving agents, that were at the time highly valued in European markets. The Portuguese sought to dominate the source, rather than relying on Arab traders who sold it to the Venetians for exorbitant prices. Malay pilots guided the expedition east via Java and along the Lesser Sundas before steering them north to Banda via Ambon. When Serrão's ship had berthed at Gresik on Java, he married a Javanese woman as his wife, who then accompanied him on the expedition's further journey.