Jatavarman Sundara I, also known as Sadayavarma Sundara Pandyan, was a king of the Pandyan dynasty who ruled regions of Tamilakam (present day South India), Northern Sri Lanka, and Southern Andhra between 1250–1268 CE. He is remembered for his patronage of the arts and Dravidian architecture, along with refurbishment and decoration of many Kovils (temples) in the Tamil continent. He oversaw a massive economic growth of the Pandyan kingdom. On the eve of his death in 1268 CE, the imperial Pandyan kingdom's territorial extent had risen to its zenith till Nellore and Kadapa by defeating Telugu Chola rulers Vijaya Gandagopala, Manumasiddhi III of Nellore Cholas and Ganapatideva of Kakatiyas.