Cornelis Altenan (died 19 September 1558) was a Danish-German builder. He was employed by

Christian III of Denmark Christian III (12 August 1503 – 1 January 1559) reigned as King of Denmark from 1534 and King of Norway from 1537 until his death in 1559. During his reign, Christian formed close ties between the church and the crown. He established ...

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 Copenhagen Castle ( da, Københavns Slot) was a castle on the islet of Slotsholmen in central Copenhagen, Denmark. It was built in the late 14th century and was located at the site of the current Christiansborg Palace. History In 1167, Bisho ...

shortly before his death. He died on 19 September 1558, when a

Flensburg Flensburg (; Danish, Low Saxon: ''Flensborg''; North Frisian: ''Flansborj''; South Jutlandic: ''Flensborre'') is an independent town (''kreisfreie Stadt'') in the north of the German state of Schleswig-Holstein. Flensburg is the centre of the ...

magistrate convicted him in a succession battle between his widow and his daughter Gertrud of his first marriage.

References

* Weilbachs Kunstnerleksikon 1947 *Utr. K. - Kane. Brevb. 1551–55, 1885–86, 1556–60, 1887–88, 186. *P. Seidelin: Diel. t lensborg, 11, (1873), 859, *T. 0. Achelis: Haderslev, 1, (1906) side 102. Danish architects 1558 deaths Year of birth unknown {{Denmark-architect-stub