Berlin

Holy Roman Empire de facto · 1789 – August 6, 1806 (from the border data)
Kingdom of Prussia de facto · 1789 – September 20, 1866 (from the border data)
German Confederation de facto · June 8, 1815 – May 18, 1848 (from the border data)
German Confederation de facto · November 29, 1850 – August 23, 1866 (from the border data)
Kingdom of Prussia de facto · October 1, 1866 – July 1, 1867 (from the border data)
North German Confederation de facto · July 1, 1867 – January 18, 1871 (from the border data)
German Empire de facto · January 19, 1871 – November 9, 1918 (from the border data)
Germany de facto · November 11, 1918 – May 8, 1945 (from the border data)
East Germany de facto · October 7, 1949 – October 3, 1990 (from the border data)
Germany de facto · since October 4, 1990 (from the border data)

Kingdom of Prussia January 18, 1701 – November 9, 1918 From Wikidata (capital, P36)
North German Confederation July 1, 1867 – January 18, 1871 From Wikidata (capital, P36)
Germany since July 1, 1867 From Wikidata (capital, P36)
German Empire January 18, 1871 – November 9, 1918 From Wikidata (capital, P36)
East Germany October 7, 1949 – October 3, 1990 From Wikidata (capital, P36)
Germany since October 3, 1990 From Wikidata (capital, P36)
Germany since 1999 From Wikidata (capital, P36)