Tags: Saint.
For the martyr of this name see Saint Placidus (martyr).Saint Placidus (also known as Saint Placid) was a disciple of Saint Benedict. He was the son of the patrician Tertullus was brought as a child to St. Benedict at Sublaqueum (Subiaco) and dedicated to God as provided for in chapter 69 of the Rule of St. Benedict. Here too occurred the incident related by St.