The Library at the Royal Castle is a large building adjacent to the Royal Castle

Royal Castle, Warsaw

The Royal Castle in Warsaw is a castle residency and was the official residence of the Polish monarchs. It is located in the Castle Square, at the entrance to the Warsaw Old Town. The personal offices of the king and the administrative offices of the Royal Court of Poland were located there from...

 in Warsaw

Warsaw

Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

, Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

. It was built between 1779 and 1783 according to design of Dominik Merlini and Jan Chrystian Kamsetzer in order to accommodate the royal collection of books belonging to King Stanisław August Poniatowski, the last King of sovereign Poland.

The Library is an elongated building of total dimensions 56 x 9 m, with 15 windows along the entrance hall, and a terrace at the top.