 After the fall of Warsaw he moved to Modlin.He resigned his post on 23 September, once the majority of the government decided to support capitulation, and was succeeded by general Maciej Rybiński.Eventually, with the collapse of the uprising, he escaped to France, joining the Great Emigration; he lived in Paris and Brussels and was an activist in the Komitet Tymczasowy Emigracji ("Emigration's Temporary Committee").