The bell-shaped chedi of Wat Yai Chai Mongkhon (fig.) in Ayutthaya. Built in 1592 by royal commission of King Naresuan to commemorate his victory over Burmese oppressors, led by their viceroy, whom was slain by King Naresuan in a duel on elephant backs in Nong Sarai, near Suphanburi. The top part of the chedi from the conical rings upward is known as plong shanai (fig.). With 2 sen, 6 wah and 1 keub (ca. 92 meter), it is the tallest stupa in Ayutthaya province.