Peder Otto Rosenørn

Peter Otto Rosenørn (24 June 1708 7 June 1751) was a Danish nobleman who served as county governor of Nykøbing County on Falster. He is the progenitor of all living members of the Rosenørn family. His 820-page diary, which covers the period from just before he turned 17 until his death, is the most comprehensive Danish diary from the first half of the 18th century.

Early life Rosenørn was born on 24 June 1708 at Yvilumgaard, the son of colonel Mathias Rosenørn and Hedevig Margrete Bornemann. His paternal grandfather Peder Madsen (1635-1706) was ennobled under the name Rosenørn in 1679. His father owned the estates Aakjær and Damkjær.

After his father's death in 1725, he came under the guardianship of his uncle, Poul Rosenørn, at Meilgaard. In 1726, he was sent on a study trip to Amsterdam with his cousin Johan Nicolai Rosenørn. They studied languages, engineering, fencing and dancing. They were back at Mailgaard in November. In 1727 he embarked on a longer grand Tour. He spent the first two years at the university in Halle. He later visited, among other places, Paris, London and Brussels. He arrived back at Meilgaard on 17 November 1731.

Career Peter Otto Rosenørn's coat of arms in Nyjøbing Avvey Church. On 9 August 1728, Rosenørn was appointed secretary in Danske Kancelli. On 31 May 1734, he was appointed kammerjunker. On 10 February 1736, he became a Supreme Court justice.

From 10 June 1738 until his death, he served as county governor of Bykøbing County on Falster. On 20 June 1839, he was appointed real etatsråd. On 14 February 1744, he was appointed Konferensraad.

Personal life

Rosenørn was married to Eva Margrethe Grüner (1721—1760) on 7. June 1740. She was a daughter of Gustav Grüner til Margaard and Sofie Amalie Vind. He died on 7 June 1751 in Nykøbing Abbey Church.

Since at least 1940, Peter Otto Rosenørn has been the progenitor of all living members of the Rosenørn family. Rosenorn's covers the period from just before he turned 18 until his death. With its 820 pages, it is the most comprehensive Danish diary from the first half of the 18th century.