Added the below caption and images to the Trombone History Timeline (16th century). I also plotted it on the interactive map of trombone art in Europe.

1598—Kassel, Germany: Visual records by Wilhelm Dilich of celebrations related to the christening of Princess Elizabeth von Hessen in 1596 include 3 different depictions of trombones (see below 3 images; public domain) (Bayerische StaatsBibliothek, Beschreibung der historischen und allegorischen Personen).