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DOCUMENTATION OF GERMAN EMPEROR MAXIMILIAN I’S TOMB

Innsbruck was the residence of the Habsburg Dynasty between 1420 and 1665. The Hofkirche with its tomb of German Emperor Maximilian I is one of the most famous and outstanding historical monuments, being in the property of the State of Tyrol. It was built between 1555 and 1565 under Ferdinand I (the brother of Emperor Karl V). The cenotaph (i.e.: empty tomb) of Maximilian is located in the center of the church’s nave. The cenotaph itself has a base of about 3 m x 5 m. 24 very delicate white marble reliefs are attached to a black marble structure which is decorated by bronze elements. With the kneeling Emperor and four more bronze statues on top of the monument it is about 5 m high. For centuries the tomb was separated from the visitors by a black iron lattice. In addition, the fine caved marble plates were covered by glass. Because of a basic conservation and restoration of the tomb, lattice and glass plates were removed for the first time ever since its construction in the 16 century. For a short period in May 2002 all sides were accessible after the temporary housing of the restoration technicians had been removed from one side and not yet been moved to the other side for the second restoration period. This time slot could be used for a complete metric documentation of the object. Both, close-range photogrammetry and 3D scanning techniques were used. A common geodetic control point system was installed for both methods. Photogrammetric work consisted of stereo pairs and separate color images. 3D scanning was accomplished with a MENSI S25 for the overall structure and a GOM ATOS II at high resolution for the relief plates. Line plots from the photogrammetric stereo models do not really give an adequate representation of the object. 3D visualization using the scanning results can achieve a much better impression of the complicated geometry after the data modelling. In order to model the complex geometry, it is necessary to use huge amounts of data. The project proves the enormous potential of these new technologies, but shows as well that more progress is needed in hardware and software development to accomplish such demanding tasks. Fig. 1: Total view of the cenotaph during the measurement work – for the first time ever without lattices and glass plates 1. MAXIMILIAN I’S CENOTAPH 1.1 Historical background Between 1420 and 1665 Innsbruck was the residence of one of Europe’s most known imperial families, the “Habsburger”. The Hofkirche at Innsbruck with the tomb of Emperor Maximilian I probably is the most important art-historical monument, which is possessed by the country of Tyrol. It was built between 1555 and 1565 under Emperor Ferdinand I (the brother of German Emperor Karl V). It contains the most important German emperor grave of Maximilian I. The cenotaph (i.e. technical term for an empty tomb) with the statue of the kneeling Emperor is in the center of the church’s nave. The tomb was created by artists from various countries, who cooperated in the production. It is a unique certification of European court art, which was influenced by the personality of the Emperor and its successor as clients. The sarcophagus is surrounded by 28 more than life-sized bronze figures, embodying ancestors and relatives of Maximilian, the so-called "Schwarze Mander" (i.e. black men).