Added the below entry and image to the 16th Century Timeline. It hardly needs mentioning if you’ve looked at the overall Trombone History Timeline or the HubPages article on Angel-Trombonists, but the number of trombonists depicted as angels in artwork throughout history is really remarkable.
c. 1590—Ravenna, Italy: Giovanni Laurenti’s painting in the Basilica of Santa Maria in Porto includes an angel-trombonist performing with harp, lute, flute, and recorder (see below image; public domain) (source: recorder home page).