[Natural Law]

"The Monsignor/pastor of my dad’s Church had a mistress and two children."

Although it is remotely possible, it is more than likely an urban myth. Please tell us the name of the pastor or the parish so we can check it out.

[Clemenza]

St. Casimir's Church, Newark, NJ, late 1950s. Don't remember the name of the priest, will ask dad.

Anyone who thinks all priests are paragons of virtue (IE not human) is deluded. The Catholic laypeople on this site are so intent on circling the wagons that they deny reality and human nature.