Yes the Hedervary name "died out " at one stage and passed to the female line . There is a long history to that name as the name of the area hence the de i am guessing .... i will find the link again if need be ...
I have had a thought that using De Hedevary came after or around the time he meet and married Ilona which makes sense as she is from Hungary and so is the de Hedervary name and area and Ilona is a name in common in the DeH lineage and popular in Hungary . It could be he has decided to use this name from then on for some reason .
Thats the thing with genealogy it focuses on the patriarch more so than the matriarch and makes it harder to decipher which grands we are talking about
I have some other ideas i am playing with for another day .
