Priests Guild Pre-Titles
A table of guild titles available to priests and the guild level at which you gain them is already available on the Discworld Priests Wiki, however while it lists a few examples of pre-titles it doesn't (yet) give details on when they're obtained. To remedy this situation I have produced the following table listing the pre-titles that Mishal gained and the guild level he gained them at. Obviously the gender-specific ones (Brother, Blessed father, etc.) will not be the same if your character is female, but the alternative should be obvious.