Justus Sustermans. Justus Sustermans also known as Suttermans and with his given name frequently Italianised to Giusto, was a Flemish Baroque painter.
He was born in Antwerp and died in Florence. Sustermans is chiefly notable for his portraits of members of the Medici family as he was their court painter.
His work can be found in both the Palatina Gallery and the Uffizi Gallery in Florence, and in many other galleries around the globe. During his lifetime he was fêted as the finest portrait painter in Italy.
He first studied in Antwerp under Willem de Vos, becoming his assistant in 1609. He then spent three and a half years in Paris, where he studied and collaborated with Frans Pourbus the younger.
He was eventually invited to Florence under the patronage of the Medici family where he studied Italian portraitists such as Il Guercino, the Spanish Diego Velázquez and France's Pierre Mignard. While in Italy he also became influenced by the Venetian artists. In 1620, Sustermans went to Florence to serve as the court painter to Cosimo II de' Medici, Grand Duke of Tuscany. He first became associated with the Medici family the year Grand Duke Cosimo II died. He spent the remainder of his career in the service of the Medici, painting in various Italian cities as well as in Innsbruck and Vienna. Sustermans' portraits document three generations of the Medici family. It is believed that the first work he co