Recently Mr. Hayes has presented a short series on "Popessa Priscilla" claiming Pricilla and Aquila, since they were in Rome prior to Sts. Peter and Paul - that they were the first bishops there - or even the first pope(s). I hope he wasn't being serious, but in his articles he give no indication of not being so in the allegations.
Who were Aquila and Priscilla? They have been thought by some to be part of the 70 apostles "sent out" and while they were in Rome for a time, they left when Claudius kicked out all the Jews (and the Romans saw the early Christians as a sect of Judaism). Some claim that they were converted by St. Paul when he visited them during their exile to Corinth. Later, after Claudius' death, they returned - but again only for a short time, for then they were sent to Asia - where they both died as martyrs (some sources state they may have returned to Rome again and were martyred there about the same time as Sts. Peter and Paul). The precise timing of their conversion is not known, but the fact that they served the early Christian Church as a couple is not disputed, it is that fact which is typically most centered upon - their devotion to Christ, as a couple, to be an example to Christian couples everywhere. There is no mention of them being "bishops" in the early Church.
I also find it somewhat amusing to see folks like Mr. Hays talking about apostolic succession, which Catholics (and Orthodox) clearly have - and Mr. Hays cannot possibly have without reliance upon Catholicism (or Orthodoxy) for valid connection back to the Apostles and Christ Himself.
Several sources to consider: