I was specifically told, in multiple places, that Wagner and Mendlessohn were not to be used for any reason, because they are not liturgical.
"*The wedding marches are an interesting topic, sure to spark debate. It has become really traditional to use the Bridal Chorus from Wagner’s opera Lohengrin for the Procession, and the Wedding March from Mendelssohn’s ballet Midsummer Night’s Dream for the Recession. Observe the words “opera” and “ballet”. Both of these marches were written for the theater stage. Both are fine pieces of music, but are tied into stories of fantasy, murder, sex, and other delights. Are they suitable for Catholic weddings? It should be an easy answer, but it is not. Back in the 1930s or so when the Society of Saint Gregory published its Black List and White List of Catholic Music, those marches were absolutely forbidden, sent to the Black List, and no more discussion, thank you. Today it is left to the local Ordinary (the head of your diocese). Some places have no restrictions, since that music has become so traditional, but some still forbid them. Some have made no statements one way or the other.
Are those pieces truly traditional? I remember attending a marvelous performance of the Mendelssohn ballet. When all the odd creatures came dancing out of the forest, a woman behind me gasped, “They’re playing There Goes the Bride! Why are they playing There Goes the Bride?” In the popular culture, those two pieces are universally known, incorrectly, as Here Comes the Bride, and There Goes the Bride. Most Americans, alas, are unfamiliar with classic opera and ballet and do not know the dramatic references in the music. Even trained musicians I know will call the Bridal Chorus by its Here Comes the Bride alias."* (
adoremus.org/1105WeddingsSongs.html)
I would suggest that even if you are not told not to use them (hope that made sense), you avoid them like the plague. They are overrated and cheesy, IMHO Why use those when you have wonderful traditional, and liturgical, music?
Here are some suggestions:
popular-wedding-songs.com/catholic-wedding-songs.html
danbury.org/npm/wedding.htm