The Thanjavur Maratha palace was originally constructed by the rulers of Thanjavur Nayak kingdom. After the fall of the Thanjavur Nayak kingdom, it served as the official residence of the Thanjavur Maratha. When most of the Thanjavur Maratha kingdom was annexed to the British Empire in 1799, the Thanjavur Marathas continued to hold sway over the palace and the surrounding fort. The Bhonsle family continued to hold on to the palace even after the last king Shivaji II was deposed as per the Doctrine of Lapse.
The palace complex consists of the Sadar Mahal Palace, the queen's courtyard and the Durbar Hall. The Raja Serfoji Memorial Hall and the Royal Palace Museum are situated in the Sadar Mahal Palace. There is also a small bell tower. The Saraswathi Mahal Library is situated with the Thanjavur palace complex.