In February 1265 Clement summoned Thomas Aquinas to Rome to serve as papal theologian.[10] It was during this period that Aquinas also served as regent master for the Dominicans at Rome.[11] With the arrival of Aquinas the existing studium conventuale at Santa Sabina, which had been founded in 1222, was transformed into the Order's first studium provinciale featuring the study of philosophy (studia philosophiae) as prescribed by Aquinas and others at the chapter of Valenciennes in 1259, an intermediate school between the studium conventuale and the studium generale. This studium was the forerunner of the 16th century College of Saint Thomas at Santa Maria sopra Minerva and the Pontifical University of Saint Thomas Aquinas, Angelicum. In 1266, after the Battle of Benevento, Pope Clement IV conceded for gratitude his coat of arms to the Guelph Party of Florence as official approval to their supremacy and therefore they could take power in many of the other northern Italian cities.