Decline of Srivijaya's Hegemony and Separation of Vassal Ports in the 1070s

Timeline

1. 1070–1073Southeastern Sumatra · IndonesiaSince the Chola fleet sacked Srivijaya's capital in 1025, the central royal house could hardly rebuild a unified navy and tribute system. In the early 1070s, although Palembang remained the nominal capital, its practical control over the strait's sea lanes and vassal ports continued to decline.
2. 1074–1078Western ports of the Malay Peninsula · Malay PeninsulaPeninsula ports such as Kedah no longer paid steady tribute to Palembang, instead trading directly with the Song dynasty, India, and Cham merchants. Song histories and Arabic geographical works record a growing number of port names, reflecting the decentralization of the trade network.
3. 1077–1079Strait of Malacca · MaritimeBy the late 1070s, Srivijaya could no longer monopolize strait trade tolls and diplomatic arbitration. Polities in eastern Java, Champa, and the Mekong basin each expanded their maritime connections, and Southeast Asian maritime trade entered a new stage of multi-port competition.