Subsequently a parallel system of canals was dug in a north- south direction cutting the city land mass into an urban hydraulic system. The remains of some of these can be seen today. At its zenith it controlled the area of South East Asia shown on the map opposite. The Kingdom of Ayutthaya saw 5 dynasties, 33 kings and was involved in 70 wars. In 1352, King Ramathibodi of Ayutthaya conquered the Khmer and in 1378 the Ayutthaya Kingdom conquered Sukhothai to its north.