 Mansur Shah also ordered the attack of Pahang by Tun Perak, the Bendahara of Malacca, to secure the defense of Malacca on the east coast.Siantan and Inderagiri in Sumatra were also given to Malacca as dowry for his marriage to the princess of Majapahit.Mansur Shah also used marriage alliances between princesses of Malacca and the rulers of conquered states to strengthen Malacca’s control over those states, such as marriage between the king of Siak to Mansur Shah's daughter, Princess Mahadewi.