Her Majesty Queen Sunandha Kumarirat is the 50th child of King Mongkut, Rama IV, who was born on November 10, 1860, to Queen Piyamawadi Sri Patcharindra Mata, who later became first queen during King Rama V's reign and gave birth to a daughter, Her Royal Highness Princess Kannaporn Petcharat.
Her Majesty Queen Sunandha Kumariratana, who was pregnant at the time, and Her Royal Highness                  Princess Kannaporn Phetcharat, the royal daughter, drowned while visiting the Bang Pa-In Palace in the Chao Phraya River at Bang Phut Subdistrict, Pak Kret District, Nonthaburi Province, on May 31, 1880, at the age of 21.
Story and illustrations: Ratchanok Thongkhawkham