It was originally built by Polish architect Piotr Barbon for merchant Konstanty Korniakt, a champion of Greek Orthodoxy and co-founder of the Lviv Dormition Brotherhood.

[1] After his death and that of his wife, Teofila Sobieska née Daniłowicz, the tenement house was inherited by Jan Sobieski, the future king of Poland.

She carried out numerous modifications and renovations of the building, with contributions from architects and artists such as Antoni Bauman, Jan Ziółkowski, and Joseph Engel.

Following his death in 1902, the property passed to the Lubomirski family, who sold it in 1908 to the city council of Lviv to be used as the National Museum of King Jan III.

Restoration and conservation work aimed at returning the building to its original appearance began immediately and continued until 1931, under the supervision of Wawrzyniec Dayczak.