By what name was Liberace known as by his family?

Player SQinfoNUTS, according to Wikipedia, "A caul or cowl (Latin: Caput galeatum, literally, "helmeted head") is a piece of membrane that can cover a newborn's head and face.[1] Birth with a caul is rare, occurring in fewer than 1 in 80,000 births.[citation needed] The caul is harmless and is immediately removed by the physician or midwife upon delivery of the child."

Player SQinfoNUt yeh, what is.""caul"" anyway. do you know, let me know!!

What is a caul?