 Ayilyam Thirunal was the nephew of Uthram Thirunal and Swathi Thirunal and grandson of the celebrated Gowri Lakshmi Bayi.Ayilyam Thirunal was born on 14 March 1832 to Rani Rukmini Bayi, the only sister of Maharajahs Swathi Thirunal and Uthram Thirunal.In the Travancore Royal Family inheritance and primogeniture was determined by the Marumakkathayam system i.e.