Ebert Baldewein

Ebert Baldewein (* around 1525 in Marburg ; † 1593 ; also: Eberhard Baldewein ) was an important court architect as well as a clockmaker , instrument maker and astronomer in the 16th century.

The trained tailor had worked as a builder in the landgrave's service since 1567. As court architect under Ludwig IV , he was responsible for all landgrave building projects in Hessen-Marburg.

Planetary clock in the State Mathematical and Physical Salon in Dresden

From 1569 to 1579 he was in the service of Wilhelm IV of Hessen-Kassel. Based on his designs, he built clocks and instruments together with the Augsburg clockmaker Hans Bucher and the case maker Hermann Diepel from Gießen. But he also carried out astronomical observations. With Diepel he created a large astronomical automaton work as early as 1561 on the basis of the new heliocentric worldview. This so-called Wilhelm's clock, which made it possible to read off the geocentric longitudes and latitudes of Mercury, Venus, Mars, Jupiter, Saturn and the moon on several dials, was considered the most important mechanical-astronomical work of art of its time.

Baldewein produced an even larger counterpart in 1568 for Elector August von Sachsen by building a planetary clock that shows the position of the sun, moon, Mercury, Venus, Mars, Jupiter and Saturn.

In 1575 he also created a celestial globe driven by a clock mechanism for his Hessian sovereign, an azimuth quadrant as the oldest metal instrument of this kind, and an armillary sphere depicting the movements of the sun and moon. His works can still be admired today at the town hall in Marburg or in the Astronomical-Physical Cabinet in Kassel and in the State Mathematical-Physical Salon in Dresden.

buildings

Marburg Castle (overview)

The historic town hall

• Royal stables and armory of Marburg Castle
• The landgrave's office in Marburg (1573–75)
• The baroque gable with the art clock and the statues of the town hall in Marburg
• The Rentkammer in Marburg
• Conversions in Romrod Castle (1586–88: Herrenbau, kitchen construction)
• The armory in Giessen (1586–1590)

In addition in:

• kassel
• Rotenburg Castle (1571–1607)
• Schmalkalden ( Wilhelmsburg Castle )

literature

• Entry of Baldewein as Eberdt Baldwein in the NDB

Web links

• Search for "Ebert Baldewein" in the German Digital Library
• Planetary clock Staatliche Kunstsammlungen Dresden

swell

1. ^ GH Baillie: Watchmakers & Clockmakers of the World . Third Edition, NAG Press Ltd., London 1966.
2. ^ Ernst Zinner: Astronomical instruments of the 11th to 18th centuries ; Verlag CH Beck, Munich 1979, ISBN 3-406-03301-6 ; P. 242f.
3. ^ Astronomical-Physical Cabinet Kassel; Astronomical art clock or planetary movement ( memento of the original from October 13, 2007 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. 
4. ^ Ludolf von Mackensen : The scientific-technical collection in Kassel ; Georg Wenderoth Verlag, Kassel 1991, ISBN 3-87013-025-3 , pp. 84f.
5. ↑ 2008 annual ; E. Poulle, H. Sendet, J. Schardin, L. Hasselmeyer: The planetary clock - a masterpiece of astronomy and technology of the Renaissance created by Eberhard Baldewein 1563-1568 ; DGC (Ed.), Stuttgart 2008, ISBN 978-3-89870-548-6
6. ^ Astronomical-Physical Cabinet Kassel; Large celestial and calculating globe ( Memento of the original from October 13, 2007 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. 
7. ^ Astronomical-Physical Cabinet Kassel; Azimuthal quadrant ( Memento of the original from October 13, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.