Fidelis has been called the "protomartyr of the Capuchin Order and of the Propaganda in Rome." He was born in 1577, became a renowned lawyer. But feeling that this profession endangered the salvation of his soul, he decided to join the Capuchin Order and employ his extraordinary gift of eloquence in urging the faithful to lead holy lives and in bringing heretics back to the true faith. An ardent admirer of the founder of his Order, he was a great friend of poverty. Severe with himself, he was most considerate towards others, "embracing them like a mother does her children." When the Austrian army was stricken by plague, he cared for the spiritual and bodily needs of the soldiers in such a manner that he was honored with the title, "Father of the fatherland."
His devotion toward the Mother of God was truly remarkable. Trusting in her intercession and that of other saints, he often begged God for the grace of sacrificing his life in vindication of the Catholic faith. The occasion came when he was appointed to lead the mission for the conversion of Grisons (in Switzerland); heroically he suffered a martyr's death and sanctified with his blood the first-fruits of martyrdom in the Capuchin Order (1622).
~from The Church's Year of Grace, Pius Parsch