Bhagini (Sister) Nivedita (Bengali pronunciation: [sister niːbediːt̪aː] listen ; born Margaret Elizabeth Noble; 28 October 1867 – 13 October 1911) was a Scots-Irish social worker, author, teacher and a disciple of Swami Vivekananda. She spent her childhood and early days of her youth in Ireland. From her father, and her college professor, she learned many valuable lessons like – service to mankind is the true service to God. She worked as school teacher and later also opened a school. She was committed to marry a Welsh youth who died soon after their engagement. She carried on her life. Wikipedia