115. The Use of the Pallium. Innocent III to the Archbishop of Trnova (in Bulgaria), 1201. Migne, 215, col. 294. To the honor of omnipotent God, and of the Blessed Virgin Mary, and of the blessed apostles, Peter and Paul, and of pope Innocent and of the Roman church, as well as of the church committed to you, we give you the pallium. It was first placed on the tomb of St. Peter, from which place we have taken it to send it to you. It is the symbol of the full power of the bishop's office. You shall wear the pallium only when you celebrate mass in the churches of your own diocese on the following days: Christmas, St. Stephen's, Circumcision, Epiphany, Purification of the Virgin Mary, Palm Sunday, Thursday and Saturday of Passion week, Easter Sunday, Monday after Easter, Ascension of our Lord, Pentecost, the three feasts of St. Mary, the birthday of John the Baptist, the feast days of all the apostles, All Saints' day, and when a church is to be dedicated, or bishop consecrated, or clergy ordained, on the principal feast days of your own church, and on the anniversary of your consecration. The bishop of Rome alone always wears the pallium when celebrating mass because he has the plentitude (fullness) of ecclesiastical power, which is symbolized by the pallium. Others wear it only on certain days, and in that diocese over which they have received ecclesiastical authority, because they are called to have authority over only a part of the church, and not over all of it [as the pope is]. 116-118. The Punishment of Heretics. 116. Innocent III to the Archbishop of Auch in Gascony, 1198. Migne, 214, col. 71. Many heresies were appearing in various parts of Europe, and Innocent III made special efforts to suppress them. The three following documents illustrate the means by which he hoped to destroy them. These letters are directed to Spain and to Gascony, where the Albigensian heresy was flourishing.