Through his own and his children's marriages he was connected to the British Royal Family, to the Imperial House of Russia and to other reigning dynasties of Europe.
Melalui pernikahannya dan pernikahan anak-anaknya, dia dihubungkan ke Keluarga kerajaan Inggris, ke Wangsa Imperial Rusia, dan ke Dinasti Eropa yang memerintah lainnya.