Sree Padmanabhadasa Sree Uthradom Thirunal Marthanda Varma (22 March 1922 – 16 December 2013) was the titularMaharaja of Travancore. He was the younger brother of the last ruling monarch of the Kingdom of Travancore, Maharajah Chithira Thirunal Balarama Varma.

Named Heir Apparent from birth, as per the Travancore matrilineal law of succession, he joined the firm of Plymouth and Company at Bangalore in 1952, working there as a clerk and truck driver briefly to study the functioning of industries at a basic level. He was the Chief Scout of the regional Boy Scout troop, and is also a patron of local hospitals and charities.

He married the daughter of Lt. Col. Krishnan Gopinathan Pandalai, the sometime Supt. of the Government General Hospital, Madras, namely Ammachi Panapillai Amma Shrimati Radhadevi Pandalai and has a son, Ananthapadmanabhan Thampi and a daughter, Parvathidevi Kochamma. He resided at Pattom Palace, Trivandrum till his death in 2013.

Sree Uthradom Thirunal was the youngest son of H.H Queen Mother Sethu Parvathi Bayi of Travancore by her consort, Ravi Varma Kochu Koyi Thampuran of Kilimanoor Royal House, a Sanskrit scholar and the great-nephew of the celebrated painter, Raja Ravi Varma. He was born on March 22, 1922 in Travancore. His siblings were Chithira Thirunal Balarama Varma and Karthika Thirunal Lakshmi Bayi. His mother, Sethu Parvathi Bayi, was distantly related, by birth, to the Travancore Royal Family in the direct female line. In 1900, following the absence of heirs in the Travancore Royal Family, she had been adopted by her maternal great-aunt, Maharani Lakshmi Bayi. According to the matrilineal traditions of the Travancore Royal Family, Sree Uthradom Thirunal, at the time of his birth, was proclaimed the Heir Apparent of Travancore with the title of : Sree Padmanabhadasa Maharajkumar Sree Marthanda Varma, Elaya Rajah (Crown Prince) of Travancore.

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