Jacinta Marto was a young Portuguese shepherdess born in 1910 in Aljustrel. Alongside her brother Francisco and their cousin Lúcia, she is known for witnessing reported apparitions of the Virgin Mary in Fátima during 1917, following earlier angelic visions in 1916. She died in Lisbon in 1920 at the age of nine, having succumbed to the 1918 influenza pandemic. Recognized as one of the youngest saints in the Catholic Church, her life and spiritual experiences have made her a significant figure in modern religious history.