My wife has received notice >from the German government that she in line for
some sort of money because her grandfather lived in Germany (before the
war). They asked for proof of inheritance, something indicating that she is
a sole survivor in her grandfather's line. Her uncle and his wife died in
Florida, childless. She has no siblings. Her father is dead.
On what sort of document would I find that her uncle and aunt had no children?
Best, Steve Orlen