Maharajah Serfoji ll, a descendent of the great maratha rules and founder of maratha kingdom,Chatrapathi Shivaji the great, ruled Thanjavur from 1798-1832 A.D
Prince Tulajendra Rajah Bhosle, 4th descendent of Maharajah Serfoji ll was living in Thanjavur Sadar mahal palace with his family, in order to preserve the heritage of the illustrious maratha royal dynasty of thanjavur and also to preserve the remaining antiques of Rajah Serfoji ll, he had formed the trust and had proposed to open a museum at "Sadar Mahal" in the palace premises in the name of "Maharajah Serfoji ll memorial hall".The museum was declared opened for the public viewing on 11-10-1997.
The Sadar mahal palace and Sarjah mahal were constructed in the year 1824 A.D under western engineering talent.The Sadar mahal palace where the museum is proposed was the residential quarters and the private durbar of Rajah Serfoji ll.
The unique collections of serfoji ll such as Thanjavur paintings, Ivory, Silver, Cryrstal, articles, armaries, furniture, glasswares, marble work etc is displayed for public. "sadar mahal" where the articles are exhibited has been renovated in its original structure as it was during serfoji ll's time