Somdej Pra Bhuddhachara Toh was the most famous and revered monk of the nineteenth century. He was born was born on the 17th April, B.E.2331, possibly the son of King Rama I
His family moved from Utradit province to Ayudhaya where at the age of 12 he was sent to Wat Intra Viharn to be ordained as a novice monk.
He was educated by Phra Boworn Virivanen, the then Abbot of Wat Banglumpoo
He was eventually to move to Wat Rakhang where he studied the Buddhist scriptures of the Pali cabon with several masters including Somdej Pra Buddha Kosacharm.
His dedication was duly noted by the then crown prince who presented him with a small gift of a little boat.
After becoming a well-known monk, he became the preceptor for Prince Mongkut, later King Rama IV, when Mongkut became a monk. During Rama IV's reign Somdej Toh was given the ceremonial name Phra Buddhacharn Toh Phromarangsi.
He was noted for the skill of his preaching and his use of Thai Poetry to reflect the beauty of Buddhism, and of course for making the now famous Somdej amulet.
Another contribution of Somdej Toh is the Chinabunchorn (Jinnabunchorn/JiNaPaJaRa) Katha. The Pra Katha Chinabunchorn was an ancient Buddhist katha, inherited from Langka city, and was found in an ancient book by Somdej Toh. The Katha was improved and rewrite by Somdej Toh.
The Pra Katha Chinabunchorn is very powerful katha and believed to be the supreme Buddhist spell because the words of this katha invite the magic power of Lord Buddha Somdej Pra Sammasambuddhachao, other Lord Buddhas and Pra Arahuntaras (supreme monks who're nearly enlightened ) to protect the worshipper from their heads to their toes in addition to dispelling all evil.