The Inca Empire reached its height under Huayna Capac (1493–1527) when it stretched from modern day Argentina to Ecuador, although Tupac Inca Yupanqui (1471-1493) was responsible for expanding much of the empire to those borders. Tupac Yupanqui conquered the Kingdom of Chimor, the biggest rival to the Inca. He expanded the empire into modern day Ecuador, Peru, and Bolivia. Atahualpa was the last pre-conquest Sapa Inca. He was killed by the invading Spaniards in 1533 and after that there were several Sapa Inca who were installed by the Spanish. The last person to hold the title was Tupac Amaru who was killed by the Spanish in 1572.