Passage: Nicholas was born at Gatchina Palace in Gatchina to Grand Duke Paul, and Grand Duchess Maria Feodorovna of Russia (née Sophie Dorothea of Württemberg). Five months after his birth, his grandmother, Catherine the Great, died and his parents became emperor and empress of Russia. He was a younger brother of Emperor Alexander I of Russia, who succeeded to the throne in 1801, and of Grand Duke Constantine Pavlovich of Russia. Riasanovsky says he was,  "the most handsome man in Europe, but also a charmer who enjoyed feminine company and was often at his best with the men."On 13 July 1817, Nicholas married Princess Charlotte of Prussia (1798–1860), who thereafter went by the name Alexandra Feodorovna when she converted to Orthodoxy. Charlotte's parents were Frederick William III of Prussia and Louise of Mecklenburg-Strelitz. Nicholas and Charlotte were third cousins, as they were both great-great-grandchildren of Frederick William I of Prussia.

Question: Where was Nicholas born?
Gatchina Palace in Gatchina