(b. 1600, Antwerpen, d. 1652, Amsterdam)
Flemish painter. He was the son of Matthijs Keirinckx and Anna Masson. In 1619 he became a master in Antwerp's Guild of St Luke, he married Clara Matthausen on 18 June 1622, and in 1624 he took on Artus Verhoeven as an apprentice. From 1636 onwards he is regularly recorded in Amsterdam, where he was registered as a citizen in the year of his death. He visited Great Britain, possibly in 1625 (Walpole mentions two signed and dated drawings of London views from this year) and definitely in 1640-41, when he undertook commissions from King Charles I to paint views of royal castles and palaces. His collaboration with Cornelis van Poelenburch suggests that he also spent some time in Utrecht.