The castle is in the center of Warsaw, originally from the 16th century rebuilt in the 17th century, as a baroque residence. For the past 200 years important building for the musical life of Warsaw. Now the seat of the Fryderk Chopin Society and a small concert hall.

The spot for the palace, a large lot of land on the Vistula escarpment directly below the Nowy Świat, was bought by Prince Janusz Ostrogski in early 17th century. As the area had been still a suburb of Warsaw and exempted from the laws of the city which prevented the inhabitants from building private fortifications, Ostrogski decided to build a small castle there. For that he financed a bastion on which the manor was to be constructed. However, it was not until after his death that the manor itself was started. Designed by Tylman of Gameren, the palace built on top of the bastion was to become one of the wings of a huge future palace. However, it was never completed and was bought by deputy chancellor of the crown Jan Gniński, who turned it into his seat.

In 1725 the palace was bought by yet another magnate family, the Zamoyski, who made it a seat of their jurydyka. However, as the unfinished manor lacked many features of an 18th century magnate palace, it never served its original purpose and with time became neglected. Since 1778 it was divided onto small flats and started serving as a hostel for students, owned by Marcin Nikuta. Converted into a military hospital by the French in 1806, between 1812 and 1817 it was abandoned and gradually fell into disrepair. During the November Uprising it was bought by the Polish government and refurbished to become a military hospital once again. Turned over to civilian authorities in 1836, it continued to be a hospital until 1859, when it was bought by the Musical Institute. It was there that both Stanisław Moniuszko and Ignacy Jan Paderewski received their education. In late 19th century an additional story was added and in 1913 a new, much larger seat for the Institute was built adjacent to the palace.

Destroyed by the Germans in the effect of the Warsaw Uprising of 1944, the building had been rebuilt by Mieczysław Kuzma between 1949 and 1954, while the ruins of the 1913 construction were demolished. Since then it houses the Fryderyk Chopin Society.

The Fryderyk Chopin Museum at the Fryderyk Chopin Society in Warsaw was established in the 1930s. At that time, thirteen valuable manuscripts were purchased from Ludwika Ciechomska, granddaughter of Ludwika Jędrzejewicz, Chopin's sister, and Bogusław Kraszewski. The creation of a Collection of Photographs, Recordings and a Library was started prior to 1939.

Fryderyk Chopin was born in Żelazowa Wola on the March 1, 1810 (some sources give February 22 as the date). The Chopin Family came to live in the left wing of the Skarbek manor when Chopin's father Nicholas was taken on as a tutor for this local family.

The public began taking an interest in Chopin's birthplace in the second half of the XIXth century – the annex was renovated and an obelisk bearing the composer's effigy in bas relief was unveiled. In 1926 the most important renovation works were initiated. The interior of the manor house was rebuilt in 1948 based on a design by Mieczysław Kuzma.

The park and the garden were designed by Franciszek Krzywda-Polkowski. The grounds were revamped in 2010, making it one of the most beautiful parks in Europe.

In 1945, the Fryderyk Chopin Institute opened again in Warsaw, and was housed at first in Zgoda Street and from 1953 in Ostrogski Castle. This was also the home of the Museum, Library and Collections of Photographs and Recordings. The museum covers the history and works Chopin, including original manuscripts and documents written by the composer, photographs and sculptures of him, letters, as well as hosting piano recitals and competitions of Chopin's works. The rich plafonds, stucco and Pompeian style frescoes are a fitting setting for the rooms of the Fryderyk Chopin Museum.

This branch of the Fryderyk Chopin Museum is situated in the apartment in the Krasiński Palace, where the Chopin Family lived during the years 1827-1836/7. After Chopin had left Poland Antoni Kolberg made the sketch of the drawing-room as a memento of Chopin's family home - he pictured the Chopin household placed - doubtless deliberately - beside the piano. In the ‘upstairs room', Chopin found the peace that he needed to devote himself to his music studies and composition. And in this drawing-room the first public performances of his early works took place.

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