John, Prince of Schleswig-Holstein


Johan of Schleswig-Holstein was the youngest son of Frederick II of Denmark and Norway and Sophia of Mecklenburg-Schwerin. He went to Russia in 1602 as the bridegroom of Boris Godunov's daughter Ksenia, but fell ill and died before the marriage could take place.

Other notable facts

I thought to make my daughter happy
By wedlock. Like a tempest Death took off
Her bridegroom—and at once a stealthy rumour
Pronounced me guilty of my daughter's grief--
Me, me, the hapless father!

Ancestry