About 3 kilometers from the city of Chaiyaphum, there is a shrine made of wood located under a tamarind tree. In 1968, the people of Chaiyaphum united to construct the shrine of Phya Phakdee Chumphon, enshrining a statue of him inside for the locals to pay their respects. Phya Phakdee Chumphon, originally named "Lae," was from Vientiane. He served as a caretaker for the royal prince in the court of Chao Anuwong of the Lan Xang Kingdom (which was then a tributary state of Thailand) during the reign of King Rama II (Buddha Loetla Nabhalai) in 1817. In 1820, Lae led his followers across the Mekong River to establish settlements in Ban Nam Khun Nong E-Jarn (now in the district of Sung Noen, Nakhon Ratchasima Province). He later moved to Ban Non Nam Aom, Ban Chilhong (now in the city district of Chaiyaphum) and continued to pay tribute to Chao Anuwong. Chao Anuwong granted Lae the title of Khun Phakdee Chumphon, commanding officer of the external forces. In 1826, Chao Anuwong instigated a rebellion against Bangkok in an attempt to gain independence, marching his army to attack Nakhon Ratchasima. However, realizing that their efforts would not succeed, he set fire to Nakhon Ratchasima and retreated back to Vientiane. On their way, turmoil ensued as families were swept along to Vientiane. During a stop at Thung Samrit, Phya Phakdee Chumphon (Lae) rallied his troops to join Khunying Mo and the residents of Nakhon Ratchasima, launching a counterattack against Chao Anuwong's forces and causing them to crumble. Chao Anuwong was enraged that Phya Phakdee Chumphon refused to cooperate with the Laotian side and even fought alongside the Thai forces. As a result, he returned to Chaiyaphum and captured Phya Phakdee Chumphon (Lae), executing him beneath the tamarind tree by Nong Pla Thao. This death was a pivotal event in Chaiyaphum's history and is fondly remembered as a significant act of valor by the locals. Consequently, they honor him with the title "Chao Por Phya Lae," holding a memorial festival each year. This celebration, which lasts for seven days starting from the first Wednesday of the sixth lunar month, is known as the "Boon Month Six Festival in Remembrance of the Good Deeds of Chao Por Phya Lae," and is regarded as the major annual event for the people of Chaiyaphum.