Both towns and courts sponsored bands of shawms and trombone. The most famous and influential served the Duke of Burgundy. The trombone's principal role was the contratenor part in a dance band. The sackbut was used extensively across Europe, from its appearance in the 15th century to a decline in most places by the mid-late 17th century. It was used in outdoor events, in concert, and in liturgical settings. With trumpeters, trombonists in German city-states were employed as civil officials. As officials, these trombonists were often relegated to standing watch in the city towers but would also herald the arrival of important people to the city. This is similar to the role of a military bugler and was used as a sign of wealth and strength in 16th century German cities.