Both

Chambers's Encyclopaedia, Volume 2: Beaugency to Cataract, p. 355

Both, ANDREAS and JAN, two celebrated Dutch painters, brothers, were born at Utrecht in 1609 and 1610. After studying under Abraham Bloemaert, they went to Italy, where they won for themselves a high reputation, Jan painting landscapes in the style of Claude, while Andreas filled in the figures in so careful a manner that the pictures look like the work of a single hand. Andreas was accidentally drowned in a canal in Venice in 1650; Jan then returned to Utrecht, where he died apparently on the 9th August 1652—though a later date is sometimes given.

Source scan(s): p. 0366