 Her mother was consort Samli.She had 5 full siblings, including the famous Princess Napaborn, and from her father's side she was a half-sister to King Chulalongkorn (later her husband), Queens Sunandha Savang Vadhana, and Saovabha.When she was ten years old, King Mongkut died and was succeeded by Sukhumala Marasri's half-brother, Prince Chulalongkorn.