Trinitatis Complex is located in central

Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...

Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of Denmark , establish ...

. The 17th century building complex includes a church, university library, and astronomical observatory. Its features include the

Trinitatis Church The Trinitatis Church (''Trinitatis Kirke'') is located in central Copenhagen, Denmark. It is part of the 17th century Trinitatis Complex, which includes the Rundetårn astronomical observatory tower and the Copenhagen University Library, in ad ...

and the

Rundetårn The Round Tower ( Danish: Rundetårn) is a 17th-century tower in Copenhagen, Denmark, one of the many architectural projects of Christian IV of Denmark. Built as an astronomical observatory, it is noted for its equestrian staircase, a 7.5-turn hel ...

astronomical observatory tower, Rundetårn itself notable as Europe's oldest functioning observatory. The complex is of a

Dutch Baroque Dutch Baroque architecture is a variety of Baroque architecture that flourished in the Dutch Republic and its colonies during the Dutch Golden Age of the 17th century. (Dutch painting during the period is covered by Dutch Golden Age painting). L ...

design by

Hans van Steenwinckel the Younger Hans van Steenwinckel the Younger (24 June 1587 – 6 August 1639) was a Flemish- Danish architect who specialised in the Dutch Renaissance style, typical of prestigious Danish buildings from the first half of the 17th century. Along with his ...

References

{{Reflist Baroque architecture in Copenhagen