- The Padmanabhapuram Palace, located approximately 64 kilometers from Thiruvananthapuram, was once the residence of the monarchs of Travancore.
- According to the Mudaliyar records, the origins of the Kalkulam Palace are detailed.
- The Padmanabhapuram Palace was built in 1601 by Venad ruler Iravi Varma Kulasekhara Perumal.
- It was later restored by Anizham Tirunal Marthanda Varma (r. 1729-1758), who also renovated the fort.
- The Kalkulam Palace was dedicated to Shree Padmanabha Swamy, the royal family’s tutelary deity.