• Was a Flemish painter and draughtsman.
• Jan Cossiers was the son of Antoon, a watercolor painter, and Maria van Cleef.
• He was baptized in the Antwerp Cathedral.
• He received his first training from his father and then moved to the studio of the prominent portrait and history painter Cornelis de Vos.
• He travelled to Aix-en-Provence in France in 1623, where he studied under the Dutch painter Abraham de Vries.
• He visited Rome where he is recorded in October 1624.
• He was back in Aix-en-Provence in 1626.
• Here he met Nicolas-Claude Fabri de Peiresc, the famous humanist and close friend of
Peter Paul Rubens.
• Peiresc recommended Cossiers to Rubens.
• Jan Cossiers returned to Antwerp in 1627.
• The following year he was admitted as a master in the Antwerp Guild of Saint Luke.
• In 1630 Cossiers married Joanna Darragon in the St. James' Church, Antwerp.
• He became the dean of the Guild of Saint Luke in 1640.
• On 26 July of that year he married for a second time to Maria van der Willigen.
• He assisted Rubens in 1635 in the decorations for the joyous entry of the Cardinal-Infante Ferdinand.
• He further assisted with Rubens' commission for decorating the Torre de la Parada, a hunting lodge of Philip IV of Spain near Madrid.
• Cossiers painted mythological scenes after designs by Rubens.
• Cossiers enjoyed the patronage of the governors of the Southern Netherlands such as Cardinal-Infante Ferdinand and Archduke Leopold Wilhelm of Austria.
• He had many pupils including Jan Carel van Bremt, Grée Melsen, Jacques de Langhe, Jacques de l'Ange, Carel van Savoyen and Franciscus van Verbist.