Helgo Zettervall
Helgo Nikolaus Zettervall, older spelling ''Zetterwall'', (21 November 1831 – 17 March 1907) was a Swedish architect and professor of the Royal Swedish Academy of Arts. He is best known for his drastic restorations of churches and other buildings around Sweden. Provided by Wikipedia
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Published: 1981
Superior document: Acta Bibliothecae Regiae Stockholmiensis 38