Købmagergade 44 is the former headquarters of Holger Petersen's textile company in Copenhagen, Denmark.

The present building on the site, which is from the 1880s, replaced the Royal Waisen House (Danish: Det Kgl.

The institution's old building on Købmagergade was a former Baroque style town mansion from the 1740s, whose earlier residents included Russian envoy to Copenhagen Johann Albrecht Korff and businessmen Joost and Peter van Hemert.

It is now part of the Trinity Quarter, a mixed-use complex owned by Hines, with a 24-hour boutique hotel, retail and six residential apartments.

The next owners were Christian IV's daughter Sophia Elisabeth (died 1657) and Hans Jørgensen Friis til Clausholm.

He subsequently demolished the two buildings and replaced them with a large, Baroque style town mansion.

Korff's secretary, Aladinsky, was interested in theater and translated two plays for the Royal Theatre: The Ghost by The Drum and The Disguised Doctor.

In 1752, Korff engaged in an affair with the actress Caroline Thielo, whom he installed in an extravagant apartment at the corner of Frederiksberggade and Mikkel Bryggersgade.

Hemert was also the owner of the country house Frederiksdal Lyststed (now Tusculum) on the north side of Bagsværd Lake.

The property was subsequently passed to his son Peter van Hemert, who, together with his half-brother, Gysbert Behagen, also continued the family firm.

[6] At the 1787 census, Hemert and his wife lived in the building with their five children (aged 10 to 19), the wife's sister Alida de Favin (née Hoglandh), their children's French-teacher Charlotte Amalia Rosenkilde, a hovmester associated with Hemert's office, five office clerks, a manager of the store in the basement, a housekeeper, four maids, a coachman, a male servant and a caretaker.

[1] Jacob Gude saw Hemert's property as a suitable new home for the Royal Wajsen House, an institution for indigent children, whose previous building, on Nytorv, where Copenhagen Court House stands today, had been destroyed in the Copenhagen Fire of 1795.

At the auction, which took place on 26 August 1806, Gude succeeded in buying the property with a final bid of 41,250 Danish rigsdaler.

The inauguration of its new building on Købmagergade was heavily delayed by the British bombardment of Copenhagen in 1807.

Jens Peter Groth, its proprietor, found the new premises, without direct access from the street, highly unsatisfactory.

[9] It was frequented by most of the leading writers of the Danish Golden Age, including Genrik Hertz, Christian Winther, B. S. Ingemann, Hauch, Steen Steensen Blicher, N. D. S. Grundtvig, H. P. Holst and Søren Kierkegaard.

[4] One of Wajsenhuset's other tenants was the parer merchant Wilhelm Wanscher, In 1733, he established his own firm in one of the side wings.He was the first external distributor of paper products from Strandmøllen north of Copenhagen.

His other customers included the newspaper Adresseavisen and the book printer Bianco Luno.

[10] In 1912, Nanna Wanscher published her childhood memoirs as Minder fra min barndom og ungdom.

[13] William Wanscher resided on the ground floor to the right with his wife Johanne Wamscher, their two daughters (aged two and four), an apprentice and two maids.

In 1876, Købmagergade 44 was sold for DKK 442,600 to Hoffensberg, Jespersen & Trap purchased the building.

Trap died in 1882, leaving Hoffensberg as the sole proprietor until he was joined by Alfred Grut 1887 in 1898.

The recessed sections of the facade (first-and second and fifth-and sixth bay from each side) feature a narrow band with circular relief motifsd between the windows of the second and the third floor.