Petrus Christus 
(1410/1420 - 1475/1476) 

Petrus Christus was an Early Netherlandish painter active in Bruges from 1444, where, along with Hans Memling, he became the leading painter after the death of Jan van Eyck. He was influenced by van Eyck and Rogier van der Weyden and is noted for his innovations with linear perspective and a meticulous technique which seems derived from miniatures and manuscript illumination. Today, some 30 works are confidently attributed to him. The best known include the Portrait of a Carthusian (1446) and Portrait of a Young Girl (c. 1470); both are highly innovative in the presentation of the figure against detailed, rather than flat, backgrounds.

https://en.wikipedia.org/wiki/Petrus_Christus

A Goldsmith in His Shop
1449
Oil on oak panel
100.1 x 85.8 cm
The MET, N.Y.
https://www.metmuseum.org/art/collection/search/459052

 Carl Spitzweg
(1808 - 1885) 

Carl Spitzweg  was a German romantic painter, especially of genre subjects. He is considered to be one of the most important artists of the Biedermeier era.

https://en.wikipedia.org/wiki/Carl_Spitzweg

The Alchemist
ca. 1860
Oil on canvas
36.8 x 43 cm
Grohmann Museum at Milwaukee School of Engineering, Milwaukee, United States
https://www.msoe.edu/grohmann-museum/the-collection/

 François-Marius Granet
(1775 - 1849) 
 

François Marius Granet was a French painter, primarily of architectural subjects.

https://en.wikipedia.org/wiki/François_Marius_Granet

The Alchemist
1800s 
Oil on canvas
61 x 48.3 cm
The Science History Institute, Philadelphia, US.
https://digital.sciencehistory.org/works/mk61rh526

 <b>David Teniers </b>
(1610-1690) 

David Teniers the Younger or David Teniers II was a Flemish Baroque painter, printmaker, and artist. He was an extremely versatile artist known for his prolific output. He was an innovator in a wide range of genres such as history painting, genre painting, landscape painting, portrait and still life. He is now best remembered as the leading Flemish genre painter of his day. Teniers is particularly known for developing the peasant genre, the tavern scene, pictures of collections and scenes with alchemists and physicians.

https://en.wikipedia.org/wiki/David_Teniers_the_Younger

The Bald-Headed Alchemist
1600s 
Oil on canvas
106.5 x 159.7 cm
The Science History Institute, Philadelphia, US.
https://digital.sciencehistory.org/works/sn009z63q

 Jan Steen
(1626 - 1679) 
 

Jan Havickszoon Steen was a Dutch Golden Age painter, one of the leading genre painters of the 17th century. His works are known for their psychological insight, sense of humour and abundance of colour. Their satire also mocks the behavior and attitudes of the Dutch bourgeoisie.

https://en.wikipedia.org/wiki/Jan_Steen

The Alchemist
ca. 1668 – 167
Oil on canvas
32.5 x 26.9 cm
Städel Museum, Frankfurt am Main, Germany
https://sammlung.staedelmuseum.de/en/work/a-goldsmith-melting-down-a-womans-jewellery-in-the-presence

 Mattheus van Helmont
(1623 - 1679)
 

Mattheus van Helmont was a Flemish painter specialized in genre scenes of interiors and village scenes. His style and subject matter were influenced by the work of David Teniers the Younger and Adriaen Brouwer. His preferred subjects were peasant feasts, wedding celebrations, drinkers and alchemists. He developed his own personal style towards the final phase of his career. He spent most of his active life in Antwerp but moved to Brussels later.

https://en.wikipedia.org/wiki/Mattheus_van_Helmont

An Alchemist at Work

1600s
Oil on canvas
109.2 x 149.9 cm
The Science History Institute, Philadelphia, US.
https://digital.sciencehistory.org/works/f7623d391 

 Thomas Wijck
(1616 - 1677)
 

Thomas Wijck (also Thomas Wijk, or Thomas Wyck) was a Dutch painter of port views and genre paintings.

https://en.wikipedia.org/wiki/Thomas_Wijck

The Alchemist
c. 1660
Oil on panel
43.6 x 38 cm

Staatliches Museum Schwerin, Germany
Rijksmuseum, Amsterdamhttps://www.museum-schwerin.de/wiedereroeffnung/