https://www.catholic.com/encyclopedia/ernst-friedrich-zwirner
Ernst Friedrich Zwirner | Catholic Answers Encyclopedia
Zwirner, ERNST FRIEDRICH, architect, b. at Jakobswalde in Silesia in 1802; d. at Cologne in 1861. He studied at Breslau and Berlin, and worked at the latter...
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https://www.catholic.org/encyclopedia/view.php?id=12579
Ernst Friedrich Zwirner - Encyclopedia Volume - Catholic Encyclopedia - Catholic Online
Architect, born at Jakobswalde in Silesia in 1802; died at Cologne in 1861. He studied at Breslau and Berlin, and worked at the latter place under Schinkel....
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https://www.newadvent.org/cathen/15775a.htm
CATHOLIC ENCYCLOPEDIA: Ernst Friedrich Zwirner
Architect born at Jakobswalde in Silesia (1802-1861)
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https://www.wga.hu/html/z/zwirner/index.html
ZWIRNER, Ernst Friedrich
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