The Palace is one of the most important, largest monuments of Hungarian Palace architecture. Its builder, Count Antal Grassalkovich I (1694-1771) was a typical figure of the regrouping Hungarian aristocracy of the 18th century. He was a Royal Septemvir, president of the Hungarian Chamber, and confidant of Empress Maria Theresa (1740-1780). The construction began around 1733, under the direction of András Mayerhoffer (1690-1771) a Salzburg builder.
The Palace has a double U shape, and is surrounded by an enormous park. The building underwent several enlargements and modifications during the 18th century, its present shape was established in the time of the third generation of the Grassalkovich family.