Graz Cathedral is dedicated to Saint Giles. It is the seat of the bishop of the Steiermark diocese. The church was built in 1438-1462 by Friederick III in the Gothic architecture. It was refurbished in Baroque style in the late 17th and early 18th centuries.
The exterior of the cathedral looks very sober today. In the Gothic period, however, the façades were covered with paintings. One fresco has been preserved - the so-called Gottesplagenbild ('God's Plagues'). It refers to a year of horrors Graz suffered in 1480.
The interior of the cathedral hormoniously combines Gothic architecture with Baroque furnishing. The frescos in the church date from the times of Emperor Frederick III. Among them: a fragment showing St. Christopher, clearly recognizable as Frederick wearing the Styrian ducal crown.
Among the most precious objects in the cathedral are the two reliquaries to the left and the right of the chancel entrance. Originally the chests belonged to Paola Gonzaga. In 1477 she married Leonhard of Gorizia and brought along her bridal chests from her native Mantua to Leonhard's castle Bruck near Lienz in East Tyrol.
Nearby is Mausoleum of Emperor Ferdinand II.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.