The canonized Sophia (Sophie) was born in Rome (hence Sophie of Rome) and died around 304 as a Catholic martyr. Her name means "wisdom". She should not be confused with Hagia Sophia (after whom most of the Sophia churches were named) or the martyr Sophie of Milan.
Sophie of Rome suffered martyrdom as a young woman in the persecution of Christians under Emperor Diocletian (~ 240-316). Pope Sergius II had some of the relics buried under the high altar of the Church of San Martino ai Monti around 845, while Bishop Remigius of Strasbourg had other relics in the Eschau Monastery in Alsace brought. Sophie is the last in the series of five Eisheiligen, her feast day is May 15th. She is the patron saint of late frosts and for growing crops. Some calendar rules: