On July 1 of the same year Pope Sixtus V approved the new group, and on April 9, 1589, the co-founders made their solemn vows, Ascanio taking the name Francis, the name by which he was subsequently known.
The Pope approved a new group on July 1st, 1589, and the co-founders took their solemn vows on April 9th of that year.  Ascanio changed his name to Francis, which became his lasting moniker.