Raphi Phatthanasak, Prince of Ratchaburi

Prince Raphi Phatthanasak, Prince of Ratchaburi (; ), (21 October 18747 August 1920) was a 14th son of king Chulalongkorn and Chao Chom manda Talab. He had one full sister, Princess Ajrabarni Rajkanya.

A key figure in Thai legal reform, he graduated from Faculty of Law, University of Oxford. In 1892, the Ministry of Justice was established and Prince Raphi was appointed as Head Minister to unify the judiciary. In 1897, he set up the first law school in Thailand. He also reorganized the Thai court system under the 1908 Law on Organization. During his tenure as the Minister of Justice, his attempts to increase the independence of the Thai judiciary from the executive led to tensions with the king's absolutist outlook. This would eventually culminate in his resignation in 1910, precipitated by a legal dispute with Prince Narathip Praphanphong over Narathip's play Phraya Raka. Following their mentor, 28 senior judges also resigned from the judiciary in a show of loyalty, though all but one were summoned by the king to resume their position.

Family Wives HRH Princess Orabhatra Prabai Rabībadhana (née Chakrabandhu), daughter of HRH Prince Chaturonrasmi, the Prince Chakkrabatradipongse Mom On Rabībadhana na Ayudhya Mom Daeng Rabībadhana na Ayudhya Mom Rajawongse Sa-eng Rabībadhana (née Pramoja) Ancestry +Ancestors of Raphi Phatthanasak Raphi Phatthanasak Father:Chulalongkorn, King Rama V of Siam Paternal Grandfather:Mongkut, King Rama IV of Siam Paternal Great-grandfather:Buddha Loetla Nabhalai, King Rama II of Siam Paternal Great-grandmother:Queen Sri Suriyendra Paternal Grandmother:Queen Debsirindra Paternal Great-grandfather:Prince Sirivongse, the Prince Matayabidaksa Paternal Great-grandmother:Mom Noi Sirivongs na Ayudhya Mother:Chao Chom Manda Talab Ketutat Maternal Grandfather:Phraya Viangnai Narubal(Rhung Ketutat) Maternal Great-grandfather:Phraya Bejra Bijaya(Noo Ketutat) Maternal Great-grandmother:unknown Maternal Grandmother:unknown Maternal Great-grandfather:unknown Maternal Great-grandmother:unknown