Ekaterina Antonovna[*][[Ekaterina Antonovna (Russian noble)|]] Alexei Antonovich of Brunswick[*][[Alexei Antonovich of Brunswick (Third son of Duke Anthony Ulrich of Brunswick and Grand Duchess Anna Leopoldovna of Russia)|]] Ivan al VI-lea al Rusiei Peter Antonovich of Brunswick[*][[Peter Antonovich of Brunswick (Second son of Duke Anthony Ulrich of Brunswick and Grand Duchess Anna Leopoldovna of Russia (1745-1798))|]]