Lady Milena was born in Czechoslovakia in 1929. Her father was recommended to leave Czechoslovakia the day before the Nazis invaded because he was both Jewish and a supporter of an anti-Nazi author. He was able to escape but left his wife and children behind. When she was nine years old, Lady Milena and her younger sister Eva were able to leave Prague on a special train, arranged by Nicholas Winton who saved 669 children in this way. Lady Milena and her sister were cared for by a local family until their mother was able to arrive one year later, having escaped via Norway. The family were thus all reunited.
This video shows Lady Milena's speech to the Holocaust Memorial Day UK Commemorative Event in 2015: