Roman Catholicism is Catholicism remade to suit the Roman mind.
A lot of heresy and apostasy were incorporated into Catholic belief to make it more palatable to the Roman citizenry.
The result?
God = Jupiter
Mary = Juno
Jesus = Minerva, a perversion that showed up in latter day Christianity when Jesus was equated to Sophia, the Greek goddess of feminine wisdom.
This is how the Triune God was equated to the Roman
Capitoline Triad of Jupiter, Juno, and Minerva.
Further the Roman terrestrial gods were each equated with
Patron Saints who like the Roman gods have specific delegated duties and powers from God/Jupiter.
An argument can be made that the
Twelve Apostles were a grouping whose significance was highlighted to accommodate the Romans for whom groupings of twelve held religious significance. There were in total eighty three people who were at one point or another called Apostles. The original twelve apostles being highlighted and the additional apostles diminished.
We are for Jesus Christ: The only begotten son of the living God ... The firstborn of many brethren (Romans 8:29).
www.believersforchrist.com
Twenty Apostles would have been of far less significance to the Romans than Twelve. Twelve being an auspicious number for the Romans.
The Rosary beads are likewise an invention of Roman Catholicism that transformed the twelve (see that number?) Janus beads into the Rosary.
Janus beads were a string of twelve beads with each representing the
Duodecimviri or
Dii Consentes or the
Twelve Great/Heavenly Gods.
A Roman would pray to the twelve gods while using their beads to keep their place in the progression of prayer. Just the same as the Catholics use their Rosary beads to recite a sequence of
Hail Mary and
Our Father.
And etc.