It is mainly the Flemish artists from the generation after Rubens coming on the art scene in the 1620s who were most influenced by Caravaggio. It can even be said that there was a Caravaggist craze in Flanders from about 1620 to 1640. The artists are often referred to as the Ghent Caravaggisti and the Antwerp Caravaggisti after the city in which they were principally active. There is, however, no discernible stylistic distinction between these two movements other than individual ones. Among the Ghent Caravaggisti can be listed Jan Janssens, Melchior de la Mars and Antoon van den Heuvel. The list of Antwerp Caravaggisti is significantly longer reflecting the importance of this city as the pre-eminent artistic centre of Flanders. They include Theodoor Rombouts, Gerard Seghers, Jan Cossiers, Adam de Coster, Jacques de l'Ange and Jan van Dalen. In Bruges, Jacob van Oost painted genre and history paintings showing the influence of the work of Caravaggio and Manfredi whose work he had studied in Rome. Some Flemish Caravaggisti left their homeland for Italy where they were influenced by the work of Caravaggio and his followers and never returned home. This is the case of Louis Finson of Bruges who after stays in Naples and Rome spent most of his career in France. Another example of an expatriate Flemish Caravaggist is Hendrick de Somer of Lokeren or Lochristi who spent most of his life and career in Naples where he painted in a Caraviggist style influenced by the Spanish painter Jusepe de Ribera. What most of these artists shared in common is that they likely visited Italy where they had first-hand contact with the work of Caravaggio or his Italian and Dutch followers. The influence of Caravaggio and his followers on their work can be seen in the use of dramatic light effects and expressive gestures as well as the new subject matter such as card sharps, fortune tellers, the denial of St Peter, etc. Some of the artists focused on certain aspects of Caravaggio's oeuvre. For instance, Adam de Coster was referred to as the Pictor Noctium (painter of the nights) because of his preference for the use of stark chiaroscuro and the repeated motif of half-length figures illuminated by a candle which is covered. Many of these artists such as Rombouts, Cossiers and Seghers later abandoned their strict adherence to the Caravaggist style and subject matter and struck out