Marienlyst Castle is a palatial residence located in Helsingør, Denmark. It was named after King Frederik V of Denmark's second wife, Juliana Maria, the queen consort of Denmark and Norway. The building formerly served as a royal pavilion of Kronborg Castle and was mostly used as a venue for pleasure and hunting. It was also used by the director-general of the Øresund Custom House, Colonel Adam Gottlob von Krogh and his wife Magdalene, between 1796 and 1847.

The architecture of Denmark has its origins in the Viking Age, richly revealed by archaeological finds. It became firmly established in the Middle Ages when first Romanesque, then Gothic churches and cathedrals sprang up throughout the country. It was during this period that, in a country with little access to stone, brick became the construction material of choice, not just for churches but also for fortifications and castles.