"Pope/bishop Cletus/Anacletus" is a fake, he really matches emperor Titus.
Further details matches evidences from their two biographies.
-- Cletus/Anacletus: name Cletus/Anacletus/Anencletus "unimpeachable" / "one who has been called (back)". -- Titus: name Titus/Tito "title (of honour)". [Titus of the Bible was in Crete. (Cletus is "more Christian" form of Anencletus.)] "It is impossible for me to be insulted or abused in any way. For I do naught that deserves censure...." "... keeping his hands unstained". "I have made but one mistake". "Titus proved to be an effective Emperor and was well loved by the population, who praised him highly when they found that he possessed the greatest virtues instead of vices." "Titus's record among ancient historians stands as one of the most exemplary of any emperor. All the surviving accounts from this period, many of them written by his own contemporaries, present a highly favorable view towards Titus." "Titus, of the same surname as his father, was the delight and darling of the human race...." [Titus considered a day lost in which he did no good (to someone).] "Yet the return of Titus..."
-- Cletus/Anacletus: ruled 76/77/79/80-88/91/92, for "11 yrs"/"12 yrs". [26 apr. 13 jul. 18 jul. 23 sep.] -- Titus: (Proclaimed imperator 70. Titus received title of Caesar in 69 or 71.) Titus on a denarius of c 79. Reigned 79-81. (Temple of Vespasian &Titus finished by Domitian. "the Arch of Titus... was not completed until the reign of Domitian.") [10 yrs reign Vespasian,+] 2 yrs reign Titus ("Because Titus effectively acted as co-emperor with his father...." Vespasian & Titus shared the same name(s) 'Titus Flavius Vespasian'). (Colosseum building took 10 yrs, begun by Vespasian and finished by Titus.) [23/24 jun. 13 sep] Note: The first 2 Cletus dates & the 2 Titus dates both have 4 months between the two dates? Linus (who matches Vespasian) and Cletus (who matches Titus) both have "12" years pontificate.
-- Cletus/Anacletus: Was "3rd pope/bishop" / "3rd after Peter" / "2nd successor of Peter". He is omitted in some popes lists. Cletus/Anacletus & Clement are alternatively in different order in some other popes list/s. -- Titus: 10th emperor [but minus the 1st 4 emperors, since Peter = Nero; and minus the 3 "usurpers" Otho, Galba, Vitellius.] Domitian was "reincarnation of Nero". [Peter = Nero, Domitian = Clement, hence some popes lists omit Linus & Cletus/Anacletus.] Titus only reigned two years, which could be why some lists omit Cletus/Anacletus? Titus & Domitian were brothers, which could be why Cletus/Anacletus & Clement are alternatively in different order in some other list/s? Titus & Nerva reigned same/similar short amount of of years, which could be why Cletus/Anacletus is alternatively after Clement in some other list/s? (Plus: Titus (Flavius Vespasian), (Titus Flavius) Domitian, and (Titus Flavius) Clemens (cousin of Domitian) all had same first two names.) ["la Clemenza di Tito"?] [They feared Titus would be another Nero; (Several false Neros appeared throughout the 70s;) Domitian was considered a reincarnation of Nero.] [Cletus/Anacletus ~ Titus; Clement ~ Timothy ~ Domitian. The order in bible is Timothy then Titus?] [Peter/Cephas, Linus and Clement are also names of persons in bible; Cletus/Anacletus is not, but Titus is.]
-- Cletus/Anacletus: Cletus/Anacletus is shown in picture standing in/under an Arch. -- Titus: the famous 'Arch of Titus'.
-- Cletus/Anacletus: Shown in picture wearing a grand Crown/diadem, and wearing red/purple robe. -- Titus: Was emperor. "Principate". "he was presented with a crown by Vologases I of Parthia." "the [Apis] ceremony required Titus to wear a diadem, which the Romans associated with monarchy".
-- Cletus/Anacletus: "pope/papa" / "pontifical/pontificate", successor of Peter (prince of apostles). -- Titus: "Principate". The emperors from Augustus to Theodosius were Pontiffex Maximus. "he [Titus] thus kept to his promise that he would assume the office of Pontifex Maximus". "...Titus, (also) dressed in religious regalia." Via Sacra? Titus' great-grandfather's surname was Petro. "claimed that he had not won the victory on his own, but had been the vehicle through which their God had manifested his wrath against his people." Imperial cult revieved by Titus. Temple of Vespasian & Titus. "the Babylonian Talmud describes "Titus as having had sex with a whore [Babylon/Rome?] on a Torah scroll inside the Temple...."
-- Cletus/Anacletus: Was a "Saint". Has a halo/aura. -- Titus: Was deified.
-- Cletus/Anacletus: "Cletus was a Roman (born Rome); Anacletus was a Greek (born Athens)." -- Titus: Was born in/at Rome. [Titans of Greek myth? Paul's letter to Titus (who was a Grecian, and was in Crete)?] Titus "was a skilled poet and orator both in Greek and Latin".
-- Cletus/Anacletus: Cletus &/or Anacletus either one and same person/pope or two different persons/popes. -- Titus: (Titus Flavius) Vespasian & Titus (Flavius Vespasian) "who both shared same names"?
-- Cletus: "martyrology/martyred/martyr" [though this seems very dubious in some of their own orthodox sources]. -- Titus: By inversion: 40,000 Jews killed at Yodfat. 1,100,000 killed during siege of Jerusalem [or during entire Jewish revolt?] (majority of them Jews). 10000-25000 died in Vesuvius/Pompeii event. Death toll unknown for fire (& plague) of 80ad 100 days of gladiator games. Somethink Domitian may have killed Titus? Jewish sources suggest Titus died after being effected by an insect for 7 yrs?