Srivijaya Empire. The Borobudur. By 1993, Pierre-Yves Manguin had proven that the centre of Srivijaya was along the Musi River between Bukit Seguntang and Sabokingking (situated in what is now Palembang, South Sumatra, Indonesia). Between late 7th to early 11th century Srivijaya rose to become hegemon in Southeast Asia, involved in close interactions — often rivalries — with neighboring Java, Kambuja and Champa.