Such a site...?
Ok, Albion, let us get into this deeper ....it is with utmost proof that anytime someone 'disagreed' with the Church, they were argued against, and sometimes most often removed via excommunication. If their grievous errors were not repented....
And for those who were considered good fathers, but did not report 100% the same teachings, they did not receive the title Saint.
Oregin is one example of this.
Because of his stand on some issues he never got title Saint.
So, i dont think any disagreed with the sinlessness of Mary... or we would have it written somewhere in argument.
However; there are writings from the East calling her the Immaculata.
Since no one argued against her grace [and i already posted what kecharitomene
meant], it was highly unlikely since they knew the language that they would have a case to argue against that.
The ancient Church did not embrace relativism.