Franz Josef Semmler, Stuka-Pilot?

[Rolfeb]

Hi All,
Yesterday I met an old lady (98 years old) to talk about several things.
She told me that her first husband died in 1947 in a motorcycle accident. And then she said that he survived the war as a Stuka Pilot but died 2 years later. She remembers that he served in Greece, Malta and Afrika.
That’s all what she remembers.
Is this pilot known? If yes, any idea which unit he belonged to?

Thanks a lot in advance
Rolf