What astronomer and nobleman is associated with Uraniborg?
Uraniborg Uraniborg (Danish: "Uranienborg" , Swedish: "Uraniborg" ) was a Danish astronomical observatory and alchemical laboratory established and operated by Tycho Brahe. It was built  1576 – c. 1580 on Hven, an island in the Øresund between Zealand and Scania, which at that time was part of Denmark. Shortly after its construction, the observatory was expanded with an underground facility, Stjerneborg, on an adjacent site.
Christoffer Urne Christoffer Urne (27 October 1593 – 27 September 1663) was a Danish civil servant. He was born in Lolland, and was a brother-in-law of Ove Gjedde. He served as Steward of Norway from 1629 to 1642.