Chaiyasiri () was a ruler of the

Singhanavati The Singhanavati (; ) Kingdom was based along the Kok River, in the Chiang Rai Basin in northern Thailand. The ancient Lanna society of northern Thailand was considered more progressive than many other contemporary societies in other regions bec ...

City-State Kingdom in

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

, prior to the

Sukhothai Period The Sukhothai Kingdom ( th, สุโขทัย, , IAST: , ) was a post-classical Thai kingdom (mandala) in Mainland Southeast Asia surrounding the ancient capital city of Sukhothai in present-day north-central Thailand. The kingdom was fou ...

Accomplishments

According to M. de la Loubere, Chaiyasiri is said to have built the city of Pipeli in

Phetchaburi Province Phetchaburi ( th, เพชรบุรี, ) or Phet Buri () is one of the western or central provinces (''changwat'') of Thailand. Neighboring provinces are (from north clockwise) Ratchaburi, Samut Songkhram, and Prachuap Khiri Khan. In the w ...

Move to Nakhon Thai

Chayasiri, along with many of his subjects, moved to Nakhon Thai in Phitsanulok Province in 1088, making Nakhon Thai the capital of the Singhanavati Kingdom for a period of time. {{s-end Rulers of the Singhanavati