Is everything at the Tridentine Latin Mass said in Latin or are parts of the Mass in the vernacular?
Every part of the Mass in the Extraordinary Form (Tridentine Mass) is in Latin (with the exception of the Kyrie eleison which is Greek). On Sundays and at certain Feast Days the Epistle and Gospel reading will be repeated in the vernacular at the time of the sermon, but are said first in Latin. The homily is in the vernacular. The Leonine Prayers after the Mass are also in the vernacular usually.