Arthur Katsopolis (circa 1849) was the father of Hermes Katsopolis, the grandfather of Iorgos Katsopolis, great-grandfather to Nick Katsopolis, great-great-grandfather to Jesse Katsopolis and Pamela Tanner, the great-great-great-grandfather to D.J., Stephanie, and Michelle, and the great-great grandfather-in-law to Danny Tanner & Rebecca Donaldson Katsopolis. He was a businessman like his father Spiro & his son Hermes.