Sir Anthony van Dyck was a Flemish Baroque artist who became the leading court painter in England, after enjoying great success in Italy and Flanders. He is most famous for his portraits of Charles I of England and his family and court, painted with a relaxed elegance that was to be the dominant influence on English portrait-painting for the next 150 years. He also painted biblical and mythological subjects, displayed outstanding facility as a draughtsman, and was an important innovator in watercolour and etching. The Van Dyke beard is named after him.

https://en.wikipedia.org/wiki/Anthony_van_Dyck