About Cornelis Altenau
Lived 1550 – 1558 (aged 7–8). Cornelis Altenau was a Danish architect.
Cornelis Altenan (died 19 September 1558) was a Danish-German builder. He was employed by Christian III of Denmark as a bricklayer and carpenter, and was responsible for building the King's fortress in Holstein.
He was also known as the king's architect and helped design Copenhagen Castle shortly before his death. He died on 19 September 1558, when a Flensburg magistrate convicted him in a succession battle between his widow and his daughter Gertrud of his first marriage.
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Important facts
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Frequently asked questions
Who was Cornelis Altenau?
Danish architect
When was Cornelis Altenau born?
Cornelis Altenau was born in 1550.
When did Cornelis Altenau die?
Cornelis Altenau died on 19 September 1558.
What was Cornelis Altenau's occupation?
Cornelis Altenau was an architect.
What nationality was Cornelis Altenau?
Cornelis Altenau was Danish.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Cornelis Altenau. https://biography.guide/cornelis-altenau/
MLA: "Cornelis Altenau." Biography.guide, https://biography.guide/cornelis-altenau/.
Chicago: "Cornelis Altenau." Biography.guide. https://biography.guide/cornelis-altenau/.
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