Den Grundlovsgivende Rigsforsamling) is a monumental oil painting by Constantin Hansen depicting the Danish Constituent Assembly's first meeting on 23 October 1848 at Christiansborg Palace in Copenhagen, Denmark.

Alfred Hage's homes in Copenhagen and in Stokkerup on the Øresund coast were frequented by writers, artists, politicians and actors.

Hage made his homes available to political salons and hosted confidential meetings between leading politicians of the time.

His niece, Annette Marie Bolette Puggaard, was from 1844 married to Orla Lehmann who was one of the principal writers of the constitution in 1848–49.

It was from 31 May to 14 June possible for the public to see the painting in his home on the payment of an entrance fee the revenues of which went to weterans of the Second Schleswig War.

[4] The painting depicts the Danish Constituent Assembly during its first meeting on 23 October 1848 at the old Christiansborg Palace which was destroyed by fire in 1884.