Dante Visiting the Underworld, 17th century

While not mentioned on the Jan Muller Antiques site where the painting was found, It has been attributed to David Ryckaert the Younger elsewhere. Additional paintings by Ryckaert were previously posted here.

Jacob Isaacsz van Swanenburg (1571 - 1638)

Sibyl showing Aeneas the Underworld, 1620

The Crossing of the Styx, 1591-1638

More paintings from Swanenburg were previously shared here.

Aureliano Milani (1675–1749) - An Old Man on His Deathbed Tempted by Demons, 17th-18th Century

Artwork found at The Metropolitan Museum of Art.

Frans Francken the Younger (1581 - 1642)

The Penitent Mary Magdalene visited by the Seven Deadly Sins, 1607-10

The Witches' Sabbath, 1607

Witch Assembly

Witches' Kitchen

The Witches' Sabbath, 1610

Witch's Sabbath, 1606

Witches' Kitchen, 1606

Witches' Kitchen, 17th C

The Temptation of Saint Anthony, 1605

Temptation of Saint Anthony, 1610-15

Temptation of Saint Anthony, detail, 1610-15

Cornelis de Bailleur - The Temptation of Saint Anthony, based on Frans Francken the Younger, 17th C

The Temptation of Saint Anthony, 1604

Pluto Carrying Proserpina Past The Nymph Cyane

Mankind's Eternal Dilemma, The Choice Between Virtue and Vice, 1633

Mankind's Eternal Dilemma, The Choice Between Virtue and Vice, detail, 1633

Allegory on the Abdication of Emperor Charles V in Brussels, 1630-40

The Damned Cast into Hell, 15th C

The Last Judgment, 1606

The Last Judgement, after 1619

The Last Judgement, detail, after 1619

Triumphal Trip of Neptune and Amphitrite

Studio of Frans Francken the Younger - The Triumph of Neptune and Amphitrite, 1635

Studio of Frans Francken the Younger- The Triumph of Neptune and Amphitrite, 1655

The Temptation of Saint Anthony, 1600-20

Homage to the Devil, 17th C

A Witches' Sabbath

Temptation of Saint Anthony, 1620

"Frans Francken the Younger (Antwerp, 1581 – Antwerp, 6 May 1642) was a Flemish painter and the best-known member of the large Francken family of artists. Francken created altarpieces and painted furniture panels, but his reputation chiefly relies on his small and delicate cabinet pictures with historical, mythological, or allegorical themes. He played an important role in the development of Flemish art in the first half of the 17th century through his innovations in many genres including genre painting and his introduction of new subject matter. He was a frequent collaborator of leading Antwerp painters of his time." - quote source 

Image sources include Wikimedia Commons.

Anton Machek (1886 - 1944)

The Incantation, 1931

Witch, 1928

The Ghost, 1934

The Preparer, 1929

Insect Dystrophy, 1928

The Garden Of The Quales, 1932

Rejuvenation Mill, 1931

Mask Fest On The Ice, 1929

Artworks originally published in the German magazine Jugend. 

Johannes Josephus Aarts (1871 - 1934)

"Dutch painter, illustrator, lithographer, engraver, etcher, writer, academic teacher and director, lecturer, sculptor and book-cover designer.

In his lithographic work, one finds depictions of farmworkers, dyke workers and later also tramps, beggars and invalids. Between 1920 and 1930 he produced mostly visionary work with apocalyptic scenes.

He painted portraits, animals and landscapes, including cityscapes and dune-landscapes." - https://www.astro.com/astro-databank/Aarts,_Johannes_Josephus

These untitled and undated etchings/ woodcuts by the artist were found at The Rijksmuseum - https://www.rijksmuseum.nl/en