Viola d'amore
The viola d’amore became very popular during the 17th century. However, after a time it became less popular because the instruments of the viol family were not used much while the instruments of the violin family took over. The viola d’amore was too quiet and sweet to play with the modern violin family. However, in the 20th century some composers have written for the instrument again, e.g. Paul Hindemith.