The Slavic connection:
Philippa of Lancaster, daughter of Henry IV, married Duke Bogislav of Pomerania-Stolp, better known as Erik of Pomerania, King of Norway, Sweden and Denmark. The first ever bride reported to have been married in a white dress.
A contemporary Princes Filippa was Filippa of Sayn-Wittgenstein-Sayn, a German aristocrat and photographer who died in car crash on the M5 near Bristol 21 year old in 2001 after 111 days of marriage to an Italian count and whose posthumous diary became a bestseller in Germany.