Hedy Lamarr was Jewish, BTW. She was born into a wealthy Austrian family, with a banker father and a pianist mother (who later converted to Catholic). Hedy was not a practicing Jew, and she had to hide being Jewish in Hollywood in those years.
Hedy was married to an abusive nazi (redundant) arms dealer. She fled Austria because of him. Her mother, an accomplished pianist, converted to Catholicism and raised her Christian. She brought her mother to the US.
He father was an engineer and taught her engineering. He died before his wife, Hedy’s mother, went the US