| ‘Summa der Bull uff Friburg im Brisgouw in der heiligen driualtikeit und unnser lieben frouwen münster Constantzer bistumbs . . .’ |
| Incipit: ‘[U]nser heiligster uatter Bapst Sixtus ...’ |
| The bull, of which this is a summary, was issued by Sixtus IV on 15 Oct. 1479. Indulgence in favour of the Church of the Holy Trinity, also called Minster of Our Lady, at Freiburg im Breisgau, which belonged to the diocese of Constance; it grants confessors the right to give complete absolution and special privileges for the years 1479-82; see P. P. Albert, ‘Papst Sixtus' des Vierten Ablaßbriefe für das Freiburger Münster', Freiburger Münsterblätter, 11 (1915), 42 Anm. 1 u. Abb. 5. |