It is uncertain why he took this name, but he may have added it in honour of his native Silesia or to honor a favourite scholastic, mystic or theosophic author, to distinguish himself from other famous writers of his era: perhaps the Spanish mystic writer Juan de los *ngeles (author of The Triumph of Love) or Lutheran theologian Johann Angelus in Darmstadt. He no longer used the name Scheffler, but did on occasion use his first name, Johann. From 1653 until his death, he used the names Angelus Silesius and also Johann Angelus Silesius. Shortly after his conversion, on 24 March 1654, Silesius received an appointment as Imperial Court Physician to Ferdinand III, the Holy Roman Emperor.
Johann Angelus Silesius
Ferdinand III