Aung San was born in the small town of Natmauk, Magway District, on 13 February 1915. The family was considered middle-class. He was the youngest of nine siblings: he had three older sisters and five older brothers. After his birth his family consulted a traditional astrologer, who gave him the name "Htein Lin", which he never used. Aung San's name, "Aung San", was given to him by one of his older brothers, Aung Than, who wanted a brother whose name rhymed with his own: this was very unusual at the time, since names starting with "A" were then only given to children born on Sundays, but Aung San was born on a Saturday.