Jayavarman II was succeeded by Jayavarman III and then by Indravarman I, who were responsible for the completion of the royal temple mountain known as the Bakong and the construction of Indratataka baray. Indravarman I consecrated the temple's dominant religious symbol, a lingam called Sri Indresvara (the name is a combination of the king's name with that of Shiva), in 881. Indravarman I also constructed the much smaller temple today called Preah Ko (Sacred Bull), dedicated in 880. In 889, Indravarman I was succeeded by his son Yasovarman I, who constructed the temple of Lolei (the name may be a modern corruption of Hariharalaya) on an artificial island in the middle of Indratataka. Yasovarman also founded a new city at the site of Angkor Thom north of modern Siem Reap and called it Yasodharapura. Yasovarman made the new city his capital and constructed a new royal temple mountain, known as the Bakheng. Yasodharapura was to survive until the 1170s when it was sacked by invaders from Champa.