Śrī Mahārāja Rake Halu Dyaḥ Siṇḍok Śrī Īśānawikrama Dharmottuṅgadewawijaya was the last king of the Sanjaya dynasty who ruled the Kingdom of Mataram from Central Java, reigned from around 928 or 929 AD. Sindok moved the seat of power of the Mataram kingdom from Central Java to East Java in 929 AD, probably as a result of the eruption of Mount Merapi and/or invasion from Srivijaya.