Sebastiaen Vrancx, Sebastiaan Vrancx or Sebastian Vranckx (pronounced [ˈvrɑŋs]; 22 January 1573 – 19 May 1647) was a Flemish Baroque painter and draughtsman who is mainly known for his battle scenes, a genre that he pioneered in Netherlandish painting. He also created landscapes with mythological and allegorical scenes, scenes with robbers, village scenes and celebrations in cities. He was a gifted figure painter who was regularly invited to paint the staffage in compositions of fellow painters.
Sebastiaen Vrancx was baptized on 22 January 1573 in the St James Church in Antwerp. His father Jan was a merchant. His mother was Barbara Coutereau.
He was an apprentice in the workshop of Adam van Noort, who was also the master of other prominent Antwerp painters such as Peter Paul Rubens, Jacob Jordaens and Hendrick van Balen. It is believed that after finishing his apprenticeship, the artist visited Italy as he only became a master of the Antwerp Guild of Saint Luke in 1600.
He commenced his career in Antwerp and gained the recognition of his fellow artists. He was particularly esteemed as a painter of battle scenes and Peter Paul Rubens is known to have owned a battle scene by the artist.
In 1610 he was invited to join the elite Confrerie of Romanists, a society of Antwerp humanists and artists. A condition of admission was that the member had travelled to Rome. The diversity and high positions held by the Confrerie's membership offered him a good opportunity to meet with potential patrons. He was elected the dean of the painter's chamber of the Guild in 1611. Vrancx was a member and district head of the local civil militia from 1613 onwards and was in 1626 asked by the Antwerp mayor to serve a five-year term as the captain of the militia in return for a complete exemption from taxes and municipal services. The position entitled Vrancx to carry a sword. It was in a vigorous pose with a sword on his side that he was portrayed by Anthony van Dyck.