At her husband's death, Mom Sangwan was just 29 years old, occupied with raising her three young children ranging in age from six and four to one year, nine months. At that time, her daughter, Princess Galyani Vadhana was studying at Rajini School. As soon as they were old enough, her sons were also sent to school, Prince Ananda Mahidol attended kindergarten at Mater Dei School and transferred to Debsirin School, while Prince Bhumibol Adulyadej remained in kindergarten at Mater Dei School.