St Peter's Abbey in the Black Forest (Schwarzwald) is a former Benedictine monastery. The monastic community was the house monastery and burial place of the Zähringen family. It was originally founded in Weilheim, in or before 1073, but was forced by hostile military action during the Investiture Controversy to move to Hirsau. Duke Berthold II of Zähringen (1078–1111) re-founded it as a family monastery, but decided in about 1090 to move it to the site which is now St. Peter im Schwarzwald.
Here it soon developed as a reformed Benedictine monastery directly answerable to the papacy, as witness for example the privilege of Pope Urban II of 10 March 1095. The Vögte (lords protectors) were initially the Zähringen family but, in the late 13th century, they were succeeded by the Counts of Urach, against whom the monks were eventually obliged to seek the protection of Emperor Charles IV. In 1526 the office passed to the Habsburgs.
By the gift of the Zähringen family and their ministeriales the abbey acquired substantial property, particularly in the 11th and 12th centuries, located in the immediate area, in the Breisgau and in the Baar region, near Weilheim. The abbey, like most other landowners of the time, suffered significant loss of income and tenants after the middle of the 14th century.
The abbey suffered disastrous fires in 1238 and again in 1437. It lost importance in the later mediaeval period, and the monastic reforms of the 15th century had little effect here. Nevertheless, it managed to keep its property intact, even through the troubles of the Reformation. The premises were re-built in Baroque style in the 17th and 18th centuries; the present church with the two onion towers was built in the 1720s. The architect was Peter Thumb, and the opulent Baroque decoration was by Franz Joseph Spiegler (55 frescoes, 1727) and Joseph Anton Feuchtmayer (sculptures), among other artists and craftsmen. Peter Thumb also constructed the library. The abbey was dissolved in the secularisation of 1806.References:
The Arch of Constantine is situated between the Colosseum and the Palatine Hill. It was erected by the Roman Senate to commemorate Constantine I's victory over Maxentius at the Battle of Milvian Bridge in 312. Dedicated in 315, it is the largest Roman triumphal arch. The arch spans the Via triumphalis, the way taken by the emperors when they entered the city in triumph.
Though dedicated to Constantine, much of the decorative material incorporated earlier work from the time of the emperors Trajan (98-117), Hadrian (117-138) and Marcus Aurelius (161-180), and is thus a collage. The last of the existing triumphal arches in Rome, it is also the only one to make extensive use of spolia, reusing several major reliefs from 2nd century imperial monuments, which give a striking and famous stylistic contrast to the sculpture newly created for the arch.
The arch is 21 m high, 25.9 m wide and 7.4 m deep. Above the archways is placed the attic, composed of brickwork reveted (faced) with marble. A staircase within the arch is entered from a door at some height from the ground, on the west side, facing the Palatine Hill. The general design with a main part structured by detached columns and an attic with the main inscription above is modelled after the example of the Arch of Septimius Severus on the Roman Forum.