Osias Beert was a Flemish Baroque painter who specialized in flower and "breakfast"-type still life

Still life

A still life is a work of art depicting mostly inanimate subject matter, typically commonplace objects which may be either natural or man-made...

s. He joined the city's Guild of St. Luke in 1608, and trained Frans van der Borch, Frans IJkens, Paulus Pontius

Paulus Pontius

-Biography:Paulus Pontius, an eminent Flemish engraver, was born at Antwerp in 1603, and was instructed in the art of engraving by Lucas Vorsterman; but he improved his designs by the advice and friendship of Rubens, from whose works he engraved many admirable plates...

 and Jan Willemssen. Beerts's floral paintings, often showing a vase of flowers in a shallow niche, are similar to the works of Ambrosius Bosschaert

Ambrosius Bosschaert

Ambrosius Bosschaert the Elder was a still life painter of the Dutch Golden Age.-Biography:He was born in Antwerp, where he started his career, but he spent most of it in Middelburg , where he moved with his family because of the threat of religious persecution...

. His breakfast pieces, frequently known by their Dutch name ontbijtjes ("little breakfasts"), are seen from a high angle with forced perspective, as was common in both Flemish and Dutch still life painting in the early years of the seventeenth century. He might have also collaborated with Peter Paul Rubens.

Sources

• Mulders, Christine van. "Beert [Beet, Beirt, Bert], Osias [Osyas], I," Grove Art Online. Oxford University Press
  Oxford University Press
  Oxford University Press is the largest university press in the world. It is a department of the University of Oxford and is governed by a group of 15 academics appointed by the Vice-Chancellor known as the Delegates of the Press. They are headed by the Secretary to the Delegates, who serves as...
  
  , [8 November 2007].
• Vlieghe, Hans (1998). Flemish Art and Architecture, 1585-1700. Pelican history of art. New Haven: Yale University Press. ISBN 0-300-07038-1