St. Philippa Mareri (†1236) was the foundress of the monastery of Franciscan Sisters of Saint Philippa Mareri or Poor Clares. Her tomb became a place of pilgrimage, while there began to be registered many miracles attributed to her intercession. The title of ‘Santa’ (Saint) first appears in a bull of Innocent IV in 1247, just 11 years after her death. In 1706 during an examination of her remains, it was found that her heart was incorrupt. This is preserved today in a silver reliquary, while her other remains are preserved in the monastery of Borgo San Pietro in the Valle del Salto. Today, nearly eight centuries after her death, the devotion to Philippa and the pilgrimage site has kept on growing not only in her homeland but also in many other countries and other continents thanks to the initiative of many emigrants from the region. The Feast day of Philippa Mareri is commemorated on 16 February.