 The altarpiece 's date is uncertain but believed to be between 1435 and 1438 . Van der Weyden was made painter to the city of Brussels in 1435 , and it is believed to have been painted after this appointment . The National Gallery gives " before 1438 " . Art historian John Ward notes that the altarpiece was one of van der Weyden 's first masterpieces , created early in his career when he was still heavily influenced by Robert Campin . He proposes a c . 1437 date based on similarities to Campin 's Werl Altarpiece . 
 The altarpiece <a href='null_genetive' title='1'><mark>'s</mark></a>date <a href='drop_aux' title='2'><mark>is</mark></a>uncertain but believed to be between 1435 and 1438 . Van der Weyden was made painter to the city of Brussels in 1435 , and it is believed to <a href='been_done' title='3'><mark>have</mark></a> been painted after this appointment . The National Gallery <a href='uninflect' title='4'><mark>gives</mark></a> " before 1438 " . Art historian John Ward <a href='uninflect' title='5'><mark>notes</mark></a> that the altarpiece was one of van der Weyden <a href='null_genetive' title='6'><mark>'s</mark></a>first masterpieces , created early in his career when he was still heavily influenced by Robert Campin . He <a href='uninflect' title='7'><mark>proposes</mark></a> a c . 1437 date based on similarities to Campin <a href='null_genetive' title='8'><mark>'s</mark></a>Werl Altarpiece . 
Da altarpiece  date uncertain but believed to be between 1435 and 1438 . Van der Weyden was made painter to the city of Brussels in 1435 , and it is believed to done been painted after this appointment . TdaNational Gallery give " b4 1438 " . Art historian John Ward note that the altarpiece was one of van der Weyden  first masterpieces , created early in his career when he was still heavily influenced by Robert Campin . He propose a c . 1437 date based on similarities to Campin  Werl Altarpiece .