Offspring of Prime Minister i 1916 male Elka van de Zilverstrand i 1965 female Alexander van de Emelenberg i 1967 male Selina van de Zilverstrand i 1969 female Utka de la Polianka i 1971 male Udalia de la Polianka i 1971 female Amurat van de Zilverstrand i 1969 male