Since the Royal House of Travancore followed the
Nair Marumakkathayam system of matrilineal inheritance the presence of females was very essential in the family. Since the family had failed to exist in the female line, on the suggestion of
Rani Lakshmi Bayi, two princesses,
Sethu Lakshmi Bayi and
Sethu Parvathi Bayi were adopted from the cousin Royal family at
Mavelikara. Maharani Sethu Lakshmi Bayi succeeded Maharajah Moolam Thirunal Sir Rama Varma as Regent in 1924 till 1931, when her nephew & heir to the throne, Maharajah
Chithira Thirunal Balarama Varma attained the legal age and became the last Maharajah of Travancore. Maharajah Sir Rama Varma married twice, both noblewomen of the
Thampi clan of the Nairs as tradition. His first wife (married in 1880) was
Nagercoil Ammachi Panapillai Amma Srimathi Kunjulakshmi Pillai Anantha Lakshmi Pillai Kochamma, of the Nagercoil
Ammaveedu family, whose aunt was the consort of
Ayilyam Thirunal. She died prior to the Maharajah's accession to the throne in 1882 giving birth to an only son, Nagercoil Sri Narayanan Chempakaraman Thampi, who remained
aide de camp to his father till his death. Following this the Maharajah remained single for more than a decade. The Maharajah's second wife was
Vadasseri Ammachi Panapillai Amma Srimathi Lakshmi Pillai Karthyayani Pillai Kochamma, of the Vadasseri Ammaveedu family. She originally belonged to the Kaipally family of Palkulangara but was adopted before marriage to the Maharajah into the Vadasseri Ammaveedu in 1899. She was born to Krishnan Nair (Nagercoil Ammaveedu) and Lakshmi Amma. She was the sister of play writ and author, Vadasseri Krishnan Thampi, who also was the Principal (1917 to 1934) of Sanskrit College in Trivandrum. Her other two sisters were Kalyani Pillai Kochamma and Bhageerathi Pillai Kochamma. She was first married to T. Sankaran Thampi, Palace Manager, from which marriage she had a son, V. Sri Velayudhan Thampi in 1898. From her marriage to the Maharajah she had a daughter, Vadasseri Shrimathi Kartyayani Pillai Bhagavathi Pillai Kochamma, in June 1901. Her elder son was also adopted by Moolam Thirunal (This was not the first instance of a Maharajah espousing an already married woman. Moolam Thirunal's uncle Ayilyam Thirunal's consort was also already married before she became royal consort in 1862).
Ulloor S. Parameswara Iyer writes about the Maharajah's consort in
Progress of Travancore Under HH Sree Moolam Thirunal: ==Sankaran Thampi of Sankaramangalam==