Our father among the saints Hieromartyr Cornelius of the Pskov Caves was the abbot of the Pskov-Caves Monastery during the middle decades of the sixteenth century. During his tenure he brought the monastery through its prime years. He was martyred through the hands of Tsar Ivan IV when Cornelius came to greet the visiting, but irate, tsar, at the gates of the monastery. He is commemorated on February 20.