I don't know of any ribald lyrics for which music survives from pre-1501, but if I encounter any I'll steer 'em your way.

You can, of course, take a tune and fit later ribald words to it, if the metrical structures agree.

Then there are songs which aren't bawdy, but are equally moving and effective, even if more serious. Here is a fragment of a translation of a reconstruction, by Pierre Aubry, of a 13th century French song:

Why does my husband beat me ?
Unhappy me!...

Now I know what to do and how to avenge myself:
I shall find consolation with my lover...

T.