Nakhon Sawan province (Thai: จังหวัดนครสวรรค์, pronounced [ná(ʔ).kʰɔ̄ːn sā.wǎn], lit. 'Heavenly City') is one of Thailand's seventy-six provinces (changwat). It lies in lower northern Thailand, neighbouring the provinces of Kamphaeng Phet, Phichit, Phetchabun, Lopburi, Sing Buri, Chai Nat, Uthai Thani, and Tak (clockwise from north).
Phetchabun (Thai: เพชรบูรณ์, pronounced [pʰét.tɕʰā.būːn]) is one of Thailand's seventy-six provinces (changwat) and lies in lower northern Thailand. Neighbouring provinces are (from north clockwise) Loei, Khon Kaen, Chaiyaphum, Lopburi, Nakhon Sawan, Phichit and Phitsanulok.
Lopburi (Thai: ลพบุรี, RTGS: Lop Buri, pronounced [lóp bū.rīː]) is a province in the central region of Thailand. The province is divided into 11 administrative districts, and Mueang Lopburi district is the capital. With over 720,000 people, the province is Thailand's 31st largest area and 35th most populous. There are eight neighboring provinces, Phetchabun, Chaiyaphum, Nakhon Ratchasima, Saraburi, Phra Nakhon Si Ayutthaya, Ang Thong, Sing Buri, and Nakhon Sawan.
Lopburi is a significant province historically, where many historical structures, artifacts, and prehistoric settlements have been discovered. In the past, Lopburi was called by the name Lavo.The kingdom had been ruled by an absolute monarch.
Sing Buri (Thai: สิงห์บุรี, pronounced [sǐŋ būrīː]) is one of the central provinces (changwat) of Thailand. Neighboring provinces are (from north clockwise) Nakhon Sawan, Lopburi, Ang Thong, Suphan Buri, and Chai Nat.
According to the Ayutthaya Testimonies, the province center, Sing Buri, was founded by the Siamese monarch Anuraja in the early 12th century, who established it as the new capital of the Phraek Si Racha region, thereby superseding Chai Nat as the administrative center of the polity.
Uthai Thani (Thai: อุทัยธานี, pronounced [ʔù.tʰāj tʰāː.nīː]), one of Thailand's seventy-six provinces (changwat) lies in lower northern Thailand. Neighbouring provinces are (from north clockwise) Nakhon Sawan, Chai Nat, Suphan Buri, Kanchanaburi and Tak. It lies somewhat off the route between Bangkok, 200 km distant and Chiang Mai.
Chai Nat (Thai: ชัยนาท, pronounced [tɕʰāj nâːt]) is one of the central provinces (changwat) of Thailand. Neighbouring provinces are (from north clockwise) Nakhon Sawan, Sing Buri, Suphan Buri, and Uthai Thani. The town of Chai Nat is 188 km north of Bangkok.
According to the Ayutthaya Testimonies, the provincial center of Chai Nat was founded by the Siamese monarch Surindrarāja in the early 11th century. He renamed Ban Pran Nuea (บ้านพรานเนื้อ) as Phra Nakhon Chai Nat Buri (พระนครชัยนาทบุรี) and designated it as the new capital of the region, thereby superseding Phraek Si Racha as the principal administrative center of the polity.