Footnotes:
(1) Jak Sri, Chak Sri, Chakra Sri, Chakkra Sri are different spellings meaning the "Magnificent Buddhist Wheel of Law".
(2) The source stated that he gave his name to the city, Kaison, meaning 'Lion' (Singh), but I found no evidence to support this claim.
(3) King Phrom (reign ca. 486-546 CE) was a legendary king and ruler of the Singhanavati (Yonok) realm in the Lanna region (modern northern Thailand) with its capital Yonok Nagaphan situated in the Chiang Saen area. He is the first Thai monarch dubbed "Maharaja" (the Great). His history is part of myths and folktales. His father was King Phangkarat. Phrom established a new town to be an outpost called Umongasela. He later renamed it Wiang Chai Prakan (present-day Wiang Chai District, Chiang Rai Province), a location upstream on the Kok River. He ruled Wiang Chai Prakan for 60 years until his death at the age of 77. His only son, Chaiyasiri (reign 546-606 CE), continued to ascend the throne.
(4) Parakramabahu the Great was the king of Polonnaruwa, Sri Lanka, from 1153 to 1186 CE.
(5) Kalinga is a historical region of India. It is generally defined as the eastern coastal region between the Ganges and the Godavari rivers, present-day Odisha and northern parts of Andhra Pradesh. It doesn't rhyme with Central Thailand, but Rohanadeera explains that at the time Nissankamalla went to Sri Lanka, there was a strong Kalinga clan there, which had been built up over at least two centuries. Being a complete foreigner, Nissankamalla would have realised the advantage of leaning on Kalinga and Vijaya to win over the Kalinga clan and to strengthen his legitimacy.
(6) The annals are unknown to the author.
(7) Wat Na Phra That was previously known as Wat Srisa Mueang and was renamed during the reign of Rama IV. It was situated along the banks of the Jak Sri waterway in the vicinity of the old city of Sing Buri. The temple is constructed on a mound measuring 43 by 116 metres. Within the surrounding rectangular outer wall, there is a central prang with a vihara on the east and an ordination hall on the west. According to the archaeological evidence, the temple pre-dates the Ayutthaya period.
(8) Wat Pradu and Wat Rong Tham were two different temples. The names were merged into Wat Pradu Rong Tham. The latter is on the site of the old Wat Rong Tham. Wat Pradu is a brick mound north of the latter. We observe the same merging of names at Wat Tha Ka Rong, being before two temples: Wat Tha and Wat Ka Rong.
(9) 1 sen 3 wa 2 sok 1 span 3 inches is 47.33 meters [1 sen = 40 meters, 3 wa = 3 × 2 = 6 meters, 2 sok = 2 × 0.5 = 1 meter, 1 span = 0.25 meters, 3 inches = 3 × 0.0254 = 0.0762 meters. Adding these together: $$40 + 6 + 1 + 0.25 + 0.0762 = 47.3262 m.