Marcela Mario de Agoncillo , also simply known as Marcela Agoncillo, was a Filipina renowned in Philippine history as the principal seamstress of the first and official flag of the Philippines, gaining her the title of Mother of the Philippine Flag.
Agoncillo was born on June 24, 1860 in Taal, Batangas, Philippines to Francisco Mario and Eugenia Coronel. She grew up in their ancestral house in Batangas built in the 1770s by her grandfather, Andres Marino.
Source: Wikipedia