The Atlantic: Champagne in the Cellar.
“How I used the internet to find the man who saved my parents’ lives in a Budapest basement during World War II.” By John Temple.

“It all started with a question, one my parents had been unable to answer for 70 years.

What happened to the French doctor they had taken in during the Russian siege of Budapest? He was an escaped prisoner of war. They were just trying to hang on. Together, they hid in a cellar, beneath the feet of German soldiers who had made the home their headquarters.”

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