Sirimavo Bandaranaike was born on 17 April 1916 , as Sirimavo Ratwatte to a prominent Radala family , who were descended from Ratwatte Dissawa , Dissawa of Matale , a signatory on behalf of the Sinhalese to the Kandyan Convention of 1815 .
Sirimavo Bandaranaike was born on 17 April 1916 , as Sirimavo Ratwatte .