Do you have any references for this? I would love to know if any of the Saints did, but I couldn’t find any references.
People used to pray the rosary because they couldn’t undersand Latin. Simply put, they prayed the rosary, and knelt down when they heard bells. No, I have no reference. I would assume that any saint who was also a priest or religious would understand Latin.
Especially in the middle ages, much of what the laity understood did not come from the words. The color of the priests vestments told them if it was a feast and if the feast was for a martyr, and what season of the liturgical calendar it was. White vestements for virgins, red for martyrs, purple during advent. Even rose colored vestments - a mixture of purple and white - are still used to indicate that we are half way through the advent season.
We are going to be hearing the “O” antiphons soon. I can’t wait! And in the OF, we will hear the “O” prayers in the Mass as well, indicating that we are waiting for the advent of Christ, that it is Advent season.
Commmon ceremonial actions communicated things to the laity who often could not understand Latin. I’m sure everyone who goes to the EF understand that there are thee kinds of bows - profound, moderate and simple. Where, when and how altar servers genuflected and bowed as they entered the Church, as they passed through the stalls which held the members of the clergy, indicated things to the laity, such as if a bishop was present or not.
These are just examples. Not everything was understood by everyone present, like today, were we can just look it up on the internet or post a question here on CAF or order a missal with both latin and english with overnight shipping from Baronius Press. The calendar, sacred art and music, and the ceremony itself communicated a lot to those present who could not understand all of the language being spoken.
I think many would have understood some of the words from sheer repetition, such as
hoc est enim corpus meum being repeated every day. But at a minimum, they didn’t understand all of the prayers on any given day, and so just prayed the rosary instead, confident in knowing that the priest stood at the altar representing Christ, offering prayers to God on their behalf, and that those prayers were effective even if they couldn’t understand what was being said. They said the rosary instead, in faith, knowing that it was one of the greatest prayers of the Church and basically the best they could do.
-Tim-