Hi Su,
I just wanted to add that my middle name is Louaine. I was named partly after Louvain and my grandmother Louisa, she died the day I was born in 1944. My father was in the RAF and stationed in Louvain at this time. He told me that Louvain was badly bombed in the second world war, he stayed there until 1946 to help them clear up. Good luck with your research.
Sheila.