Freiburg Minster () is the cathedral of Freiburg im Breisgau, southwest Germany. The last duke of Zähringen had started the building around 1200 in romanesque style. The construction continued in 1230 in Gothic style. The minster was partly built on the foundations of an original church that had been there from the beginning of Freiburg, in 1120. In the Middle Ages, Freiburg lay in the Diocese of Konstanz. In 1827, Freiburg Minster became the seat of the newly erected Catholic Archdiocese of Freiburg, and thus a cathedral. Architecture The Swiss historian Jacob Burckhardt once said that the church's 116-meter tower will forever remain the most beautiful spire on earth. His remark gave rise to the frequently heard misquote of the most beautiful tower in the whole of Christianity. The tower is nearly square at the base, and at its centre is the dodecagonal star gallery. Above this gallery, the tower is octagonal and tapered, and above this, is the spire. It is the only Gothic church tower in Germany that was completed in the Middle Ages (1330), and has lasted until the present, surviving the bombing raids of November 1944, which destroyed all of the houses on the west and north side of the market. The tower was subject to severe vibration at the time, and its survival of these vibrations is attributed to its lead anchors, which connect the sections of the spire. The windows had been taken out of the spire at the time by church staff led by Monsignor Max Fauler, and so these also suffered no damage. Freiburg Minster was not the seat of a bishop until 1827, long after it was built. The tower has 16 bells, the oldest being the "Hosanna" bell from 1258, which weighs 3,290 kilograms. This bell can be heard on Thursday evening after the Angelus, on Friday at 11:00 am (a time consequently known as "Spätzleglocke"), on Saturday evenings, and each year on 27 November in remembrance of the air raid. Interior There are two important altars inside the cathedral: the high altar of Hans Baldung, and another altar of Hans Holbein the Younger in a side chapel. The inner portal contains sculptures of the Ten Virgins. The nave windows were donated by the guilds, and the symbols of the guilds are featured on them. The deep red color in some of the windows is not the result of a