Swathi Thirunal had an early marriage but his wife died soon. Later, he was married a second time to Thiruvattar Ammachi Panapillai Amma Srimathi Narayani Pillai Kochamma of the Thiruvattar Ammaveedu family. His wife was a talented Carnatic singer and Veena player. The couple had a son named Thiruvattar Chithira Nal Anantha Padmanabhan Chempakaraman Thampi. In 1843, Swathi Thirunal had a 3rd marriage with Sundara Lakshmi Ammal, daughter of a Mudaliar, who migrated to Trivandrum. Sundara was better called Sugandhavalli, as she was a dancer. Legend has it that his second wife failed to approve the wedding and hence, Sugandhavalli was banished from Travancore. This proved traumatic for the Maharajah was believed to possess died thanks to broken heart in 1846.