Olga Erikovna von Pistohlkors (1888-1963), married firstly in 1906 to Count Alexander Belzig von Kreutz and secondly in 1922 to Fürst Sergius Kudaschew.
Marianna Erikovna von Pistohlkors (1890-1976), married firstly in 1908 Peter Durnowo, secondly in 1912 to Christoph von Derfelden and thirdly in 1917 to Count Nicolaus von Zarnekau.