Swami Vivekananda's Family Bhubaneswari Devi. 1841-1911 The mother of Swami Vivekananda. "I am indebted to my mother for the efflorescence of my knowledge." - Swami Vivekananda Mahendranath Datta The brother of Swami Vivekananda. Bhupendranath Datta, 1880-1961 The brother of Swami Vivekananda. Swarnamoyee Devi The elder sister of Swami Vivekananda. Raghumani Devi The grandmother of Swami Vivekananda. Vishwanath Datta. 1835 – 25 February 1884 The father of Swami Vivekananda.