Many territories in Peninsular Malaysia and eastern Sumatra and the surrounding islands were under the control of Malacca during his rule such as Selangor, Bernam, Kampar, Siak, Manjung, Rupat, Singapore, and Bintan. 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.