Capello was born in Antwerp, the son of Jean-François Capello, an Italian military contractor and Marie de Boxhorn. He entered the Dominican order in 1612 and spent many years studying theology in Douai, Salamanca and eventually gaining his doctorate in Leuven in 1627.
Having held various posts of reponsibility for his order he was appointed as Bishop of Antwerp in 1652, but he was not consecrated until 1654. Notably he founded a retirement home for elderly priests and on his death gave all his possessions to the poor. His ornate tomb in Antwerp Cathedral was designed by Artus Quellinus II.
Private Collection, Germany