Portraits of late 17th century British children and young people. One with a pet. John Closterman (Klosterman), artist. Living from 1660 to 1711, he specialized in portraits of European noblemen and their families. From Westphalia but painted a great deal in Britain.

"Portrait of David Papillon (1691-1762), full-length, with a bow and arrows and his dog, in a landscape." ca. 1700. Oil on canvas.
“Portrait of David Papillon (1691-1762), full-length, with a bow and arrows and his dog, in a landscape.” ca. 1700. Oil on canvas. Image © CHRISTIE’S 2020. Fair use license. viahttps://www.christies.com/lotfinder/Lot/john-closterman-osnabruck-1660-1711-london-portrait-of-6043895-details.aspx
John-Closterman-The-Children-of-John-Taylor-of-Bifrons-Park-1696-National-Portrait-Gallery-John-John-Closterman-The-Children-of-John-Taylor-of-Bifrons-Park-1696-National-Portrait-Gallery
“The Children of John Taylor of Bifrons Park.” 1696. Oil on canvas. Collection of the National Portrait Gallery, London. Image © NEIGHBOURHOOD MEDIA LIMITED 2020. Fair use license. via https://theglossarymagazine.com/arts-culture/the-must-see-exhibitions-in-london-this-spring/john-closterman-the-children-of-john-taylor-of-bifrons-park-1696-national-portrait-gallery-john-john-closterman-the-children-of-jo
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Portrait of a boy, full-length, in classical dress, with a greyhound, a wooded landscape beyond. No date. Oil on canvas. Circle of John Closterman. Image © CHRISTIE’S 2020. Fair use license. via https://www.christies.com/lotfinder/Lot/circle-of-john-closterman-osnabruck-1660-1711-london-5641730-details.aspx

Portraits of children all dressed up, feathers in their bonnets and all. One with no feathers but arrows instead. Nicolaes Maes, Dutch painter. (1634 -1693).

"Portrait of a Baby Girl as Venus, in a Chariot Drawn by Doves." 17th c.
“Portrait of a Baby Girl as Venus, in a Chariot Drawn by Doves.” 17th c. Oil on canvas. Photo credit: National Trust Images. Image © National Trust, Wimpole Hall. Fair use license. via https://artuk.org/discover/artworks/portrait-of-a-baby-girl-as-venus-in-a-chariot-drawn-by-doves-171684.
"Portrait of a Boy as a Hunter." 1671. Private collection.
“Portrait of a Boy as a Hunter.” 1671. Private collection. Image © 2019 Mauritshuis. Fair use license. via https://www.mauritshuis.nl/en/discover/exhibitions/nicolaes-maes/
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“Portrait of a Boy with a Dog and a Bird.” 17th c. Signed “MAES” on the lower left. Image © 2019 Lempertz Auctions. Fair use license. via https://www.lempertz.com/en/catalogues/lot/1057-1/1518-nicolaes-maes.html

Portraits of children and their pets ready for winter. Dutch. Jan Albertsz Rotius, artist. Living from 1624 to 1666 he probably learned to paint from his father Jacob who painted flowers.

"Four-Year-Old Boy with Goat." 1652.
“Four-Year-Old Boy with Goat.” 1652. Oil on panel. Image © Rijksmuseum, Amsterdam. Fair use license. via https://www.pubhist.com/w10637
"A Four-year-old Girl with a Pot of Carnations." 1663.
“A Four-year-old Girl with a Pot of Carnations.” 1663. Oil on canvas. Collection of the Art Gallery of Ontario. In the public domain in the United States because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:Jan_Albertsz_Rotius_-_A_Four-year-old_Girl_with_a_Pot_of_Carnations_-_1663.jpg
Portrait of a Young Boy. 1666.
Portrait of a Young Boy. 1666. Attributed to Jan Albertsz Rotius. In the public domain in the United States because the artist has been dead over 70 years. via https://i.pinimg.com/originals/f2/90/a7/f290a7bbd8e0b20c1e90e88c19001da7.jpg
Portrait of a Boy with a Goat. 1640-1660.
Portrait of a Boy with a Goat. 1640-1660. Collection of the Bowes Museum, Barnard Castle, County Durham. England. In the public domain in the United States because the artist has been dead over 70 years. via https://i.pinimg.com/originals/bb/b3/d7/bbb3d76c90ae6d02ce013f10a5e8d681.jpg

Children, some playing and some fighting. French. Henri-Pierre Danloux, artist (1753-1809). Brought up in Paris, he painted in Rome.

"Two Children Fighting over a Piece of Bread." No date.
“Two Children Fighting over a Piece of Bread.” No date. In the public domain due to age. via https://fineartamerica.com/featured/two-children-fighting-over-a-piece-of-bread-henri-pierre-danloux.html
Portrait of Henry John Lambert. 1800.
Portrait of Henry John Lambert. 1800. Oil on canvas. Private collection. Image © Web Gallery of Art. Fair use license. via https://www.wga.hu/html_m/d/danloux/lambert.html
Portrait of Two Children. No date.
Portrait of Two Children. No date. Collection of the Milwaukee Art Museum, Milwaukee. In the public domain due to age. via https://www.oceansbridge.com/shop/uncategorized/portrait-of-two-children-3
The Masters Foster. No date.
The Masters Foster. No date. Photo © Christie’s. © 2019 1000Museums. Fair use license. via https://www.1000museums.com/art_works/henri-pierre-danloux-the-masters-foster

Pictures of young people by Swiss painter Jean-Étienne Liotard. Living from 1702 to 1789, he is best known for his pastel portraits.

Princess Louisa Anne.  1754.
Princess Louisa Anne. 1754. Image © Royal Collection Trust. Fair use license. via https://www.bsecs.org.uk/criticks-reviews/jean-etienne-liotard/
"Avec une Poupee/Marianne Liotard Holding a Doll." 1765.
“Avec une Poupee/Marianne Liotard Holding a Doll.” 1765. Pastel on parchment. Collection of Schönbrunn Palace, Vienna. In the public domain in the United States because the artist has been dead over 70 years. via https://neiljeffares.wordpress.com/2016/01/06/mlle-liotard-playing-with-her-doll-some-puzzles/
Princess Caroline Mathilda. 1754.
Princess Caroline Mathilda. 1754. Pastel on vellum. Royal Collection Trust. In the public domain because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:Caroline_Matilda_1754_by_Liotard.jpg
Prince Henry Benedict Clement Stuart (1725–1807), Cardinal York and younger brother of Prince Charles Edward Stuart.
Prince Henry Benedict Clement Stuart (1725–1807), Cardinal York and younger brother of Prince Charles Edward Stuart. 18th c. Image and photo credit © National Galleries of Scotland, Scottish National Portrait Gallery. Fair use license. via https://artuk.org/discover/artworks/prince-henry-benedict-clement-stuart-17251807-cardinal-york-and-younger-brother-of-prince-charles-edward-stuart-212866
"Children Blowing Soap Bubbles." 18th c.
“Children Blowing Soap Bubbles.” 18th c. Collection of Schönbrunn Palace, Vienna. In the public domain in the United States because the artist has been dead over 70 years. via https://elismondom.wordpress.com/2012/04/26/genf-a-szepmuveszeti-muzeum-es-liotard/

Paintings of children, mostly with pets. French. Pierre Gobert, artist. Living from 1662 to 1744 he was a member of the Royal Academy of Painting and Sculpture.

Léopold-Clément de Lorraine. 1710's.
Léopold-Clément de Lorraine. 1710’s. In the public domain in the United States because the artist died over 70 years ago. via https://fineartamerica.com/featured/leopold-clement-charles-de-lorraine-pierre-gobert.html
The young Louis XV. 1714.
The young Louis XV. 1714. Oil on canvas. Collection of the Museo del Prado, Madrid. In the public domain due to age. via https://fineartamerica.com/featured/the-young-louis-xv-1714-oil-on-canvas-pierre-gobert.html
Girl with a bird cage. ca. 1712.
Girl with a bird cage. ca. 1712. Oil on canvas. Collection of the Museo del Prado, Madrid. In the public domain due to age. via https://fineartamerica.com/featured/girl-with-a-bird-cage-ca-1712-oil-on-canvas-pierre-gobert.html
Princess Louise of France. 1728-1733.
Princess Louise of France. 1728-1733. In the public domain due to age. via http://monarquiasdeeuropa.blogspot.com/2011/04/luisa-de-francia.html

Portraits of children by Irish painter Sir Martin Archer Shee. Living from 1769 to 1850, he served as president of the Royal Academy and the Birmingham Society of Artists.

Portrait of Jane Pomeroy. ca. 1790.
Portrait of Jane Pomeroy. ca. 1790. Image © Timothy Langston Fine Art and Antiques, London. Fair use license. via http://www.timothylangston.com/stock/151188/sir-martin-archer-shee-1769-1850#
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Portrait of William Archer Shee, the Artist’s Son. ca. 1820. Collection of the Metropolitan Museum of Art, New York. Cc0 license 1.0. via https://commons.wikimedia.org/wiki/File:William_Archer_Shee_(1810%E2%80%931899),_the_Artist%27s_Son_MET_DP169500.jpg
Queen Victoria as a child. 1820's.
Queen Victoria as a child. 1820’s. Fair use license. via https://www.artranked.com/topic/Victoria#&gid=1&pid=12

Portraits of 19th century children in tartan plaid. Made fashionable by the children of Queen Victoria and Prince Albert, in no time children around the world were dressed like little Scots highlanders whether they were or not.

"Children of John and Mary Ross." 1843.
“Children of John and Mary Ross.” 1843. American. Samuel Bell Waugh, artist (1814-1885). Image ©Gilcrease Museum. Fair use license. via https://collections.gilcrease.org/object/01261220
"Portrait of young Harry Herbert Keith." ca. 1860.
“Portrait of young Harry Herbert Keith.” ca. 1860. American school. In the public domain due to age. via https://www.curiousandunusualtartans.com/portraiture
"Portrait of a Young Boy, Wearing Highland Dress." 1892.
“Portrait of a Young Boy, Wearing Highland Dress.” 1892. French. Charles Henri Hilaire Michel, artist (1817-1905). In the public domain due to age. via https://www.curiousandunusualtartans.com/portraiture

Renaissance little ones bundled up like puffballs. One a bit famous and the others not, but all adorable as they gaze out at us no doubt thinking we are underdressed.

"Boy in White." 1641.
“Boy in White.” 1641. Dutch. Dirck Dircksz van Santvoort, artist (1610-1680). In the public domain due to age. via https://bjws.blogspot.com/2014/02/dutch-children-in-1620-1650-all-clothed.html
"Cosimo III de' Medici, Grand Duke of Tuscany." 1643.
“Cosimo III de’ Medici, Grand Duke of Tuscany age 1.” 1643. Flemish. Justus Sustermans, artist (1597-1681). In the public domain due to age. via https://www.flickr.com/photos/peramuzesi/8357885240/
"Young girl with a goldfinch." ca. 1620.
“Young girl with a goldfinch.” ca. 1620. Scandinavian school. In the public domain due to age. via https://blouinartsalesindex.com/auctions/-Scandinavian-School-7544834/Young-girl-with-a-goldfinch-1620
"Portrait of a child with a dog." 1605.
“Portrait of a child with a dog.” 1605. Early Netherlandish. Attributed to Van Zelven. In the public domain due to age. via https://www.sophieploeg.com/blog/painted-pals/
"Portrait of a five year old boy with a parrot." 1625-1650.
“Portrait of a five year old boy with a parrot.” 1625-1650. Jacob Gerritsz Cuyp, artist. In the public domain due to age. via http://www.parrotforums.com/questions-answers/30414-old-portraits-parrots.html