Ayutthaya (full name
Phra Nakhon Si Ayutthaya, , (
Pronunciation]; also spelled "Ayudhya") city is the capital of
Ayutthaya province in
Thailand. Located in the valley of the
Chao Phraya River, the city was founded in 1350 by King
U Thong, who went there to escape a
smallpox outbreak in
Lop Buri and proclaimed it the capital of his kingdom, often referred to as the
Ayutthaya kingdom or Siam. Ayutthaya became the second Siamese capital after
Sukhothai. It is estimated that Ayutthaya by the year 1600 CE had a population of about 300,000, with the population perhaps reaching 1,000,000 around 1700 CE, making it one of the world's largest cities at that time, when it was sometimes known as the "
Venice of the East".