The 2004 remake of Sid Meiers Pirates also mentioned the name "Dread Pirate Roberts", or fairly close to where the character Bart Roberts refered to himself as

The 2004 remake of Sid Meiers Pirates also mentioned the name "Dread Pirate Roberts", or fairly close to where the character Bart Roberts refered to himself as "The dread pirate Bart Roberts". A fairly popular game (and highly pirated) its also possible the name was picked from it.