The architecture of the Ayutthaya Period maybe roughly divided into four sub-period as follows:
The First Sub-Period begins in 1350 A.D., when King U Thong founded the Ayutthaya kingdom, down to the end of King Borommatrairokkanat’s reign in 1488 A.D during this period, the prang was popularly constructed as the principal monument of various monasteries.
The style of Early Ayutthaya Period prang could have been influence by the main prang at Wat Phra Si Rattana Mahathat in
Lop Buri but with a taller form and more superimposed redented square base. Example are the main prangs at Wat Phutthaisawan, Wat Phra Phra Ram, Wat Phra Si Rattana Mahathat and Wat Ratchaburana, all in Ayutthaya.