Hello Jerry and Artur,
Thank you for your fast reply's.
I'm looking into the loss of Lt Karl Endrizzi, 4/.JG.1. He was lost in combat with bombers and fighters. Sources speak of Northwest of Leiden and 15 km west of zandvoort, both locations are a long way from Dover. Perhaps he was shot down by bombers of the 97th and 301st bombing groups. They were attacking Rotterdam that day.
133, 308 and 402 sqadron all claimed one damaged. 10./JG.1 also lost a fw190 near Nieuwkoop.
It's not getting clearer
Dennis