Phra Chularatchamontri
(Kasem Ahmadchula)

Phra Chularatchamontri Kasem Ahmadchula was the eighth Chularatchamontri of the Rattanakosin Kingdom and the twelfth of the Kingdom of Thailand. His Islamic name was "Muhammad Raza." He was the fifth child of Phraya Chularatchamontri (Sin) and Khun Daeng, and the younger brother of Phra Chularatchamontri (San), though they had different mothers.

His father, Chao Khun, presented him for royal service as a special royal page toward the end of King Chulalongkorn's reign. He was graciously assigned to the Department of the Right Harbor within the Ministry of Foreign Affairs.

Later, during the reign of King Vajiravudh, he was transferred to serve in the Ministry of Justice as the Deputy Director of the Stamp Department, receiving the title of Luang Srinawarat (Kasem).

He was then promoted to Deputy First Class High Official. When Phraya Chularatchamontri (San) passed away, he was further promoted to Director of the Stamp Department at the Ministry of Justice and was also granted the title of Phraya Chularatchamontri, acting as Chularatchamontri.

Phra Chularatchamontri (Kasem Ahmadchula) held the position for just over three years before he passed away in 1926 at the age of 37. His body was buried at the Ton Son Mosque (Kudi Yai) at the mouth of the Bangkok Yai canal in Bangkok.