I sang in a few amateur choirs and choral groups back in the 1960/70s before smoking had an adverse effect on the voice and breathing.
I'm surprised there does not seem to be much mention of madrigals & similar works on TC yet there are quite a few sacred choral works featured.
This thread will hopefully go some way to give this lesser known genre some exposure.

Here's a selection to start with, a few may be familiar as folk songs.