Funny, I just came across a wedding song in an old Victorian songbook which I soundly rejected- I'll see if I can find it again.
I believe the the tune "Here comes the Bride" as we know it is from an opera (Lohengrin?) and as such would have German Lyrics. It was made popular by Queen Victoria's daughter, who also made the white wedding dress popular, among other things. (hence, "all dressed in white"?) I have NEVER heard it sung, only played as a march, with a piece by Mendelsohn as a recessional.
You could check a wedding traditions site.
have fun- Julia