Some fairly early sources refer to “Petronilla,” the wife of St. Peter, or a daughter. (The names make no sense, in context: St. Peter was not Roman, and his real name was Simon. It’s as if my referring to my children as the “Tax-chickadees” were taken as indicating their real names.)
However, the Bible says he had a mother-in-law, so he must have had a wife at some point in his life. Children are not mentioned in Scripture, nor the wife herself. She may have been dead by the time St. Peter became a disciple of Jesus.
Vlad, the Tax Chickadee??? Things that make you go hmmmm!