19th century ladies wearing interesting things on their heads. Eugène Devéria, French artist. Living from 1805 to 1865 he was part of the Romantic school.

"Eugene Francois Marie Joseph Deveria, Roxane in Racine's "Bajazet" tragedy."
“Eugene Francois Marie Joseph Deveria, Roxane in Racine’s “Bajazet” tragedy.” ca. 1838. Attributed to Devéria. Image © 2019 MutualArt Services, Inc. Fair use license. via https://www.mutualart.com/Artwork/Roxane-in-Jean-Baptiste-Racine-s-Bajazet/C72A860D43112B3B
"Portrait of a Young Scottish Woman" (detail).
“Portrait of a Young Scottish Woman” (detail). Undated. In the public domain in the United States because the artist has been dead over 70 years. via https://www.magnoliabox.com/products/portrait-of-a-young-scottish-woman-xir279360
"La femme au turban dite la Sultane."
“La femme au turban dite la Sultane.” Undated. Collection of the Musée Magnin, Dijon. In the public domain in the United States because the artist has been dead over 70 years. via https://femmefemmefemme.wordpress.com/category/eugene-francois-marie-joseph-deveria-1805-1865/
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Ladies of fashion and their amazing head wear . . . . mostly European but a few Asian ladies in the bunch . . .

Portrait of Madame Arachequesne. 1831.
Portrait of Madame Arachequesne. 1831. French. Oil on canvas. Louis Hersent, artist. Collection of the Musée Carnavalet, Paris. Photo credit: Roger-Viollet / Parisienne de la Photographie, Paris. via https://nonsite.org/article/portraits-of-fantasy-portraits-of-fashion.
Portrait of the Empress Dowager Cixi as Guanyin.  late Qing dynasty, Chinese.
Portrait of the Empress Dowager Cixi as Guanyin. late Qing dynasty, Chinese. Ink and colors on silk. Anonymous court artist. Image courtesy of Alan Kennedy, Santa Monica, California. via http://www.alaintruong.com/archives/2016/03/11/33495310.html.
Portrait of an Unknown Woman in Russian Costume. 1784.
Portrait of an Unknown Woman in Russian Costume. 1784. Russian. Ivan Argunov, artist. Collection of the Tretyakov Gallery, Moscow. via https://en.wikipedia.org/wiki/Kokoshnik#/media/File:Ivan_Argunov_-_%D0%9F%D0%BE%D1%80%D1%82%D1%80%D0%B5%D1%82_%D0%BD%D0%B5%D0%B8%D0%B7%D0%B2%D0%B5%D1%81%D1%82%D0%BD%D0%BE%D0%B9_%D0%B2_%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC_%D0%BA%D0%BE%D1%81%D1%82%D1%8E%D0%BC%D0%B5_-_Google_Art_Project.jpg.
Nāhiʻenaʻena as a child. 1825.
Nāhiʻenaʻena as a child. 1825. Oil painting. Robert Dampier, artist. Collection of the Honolulu Museum of Art. via https://paradiseofthepacific.wordpress.com/tag/missionaries/.
Portrait of Señora Manuela Suárez Lastra de Garmendia. ca. 1830.
Portrait of Señora Manuela Suárez Lastra de Garmendia. ca. 1830. Charles Henri Pellegrini, artist. Collection of the Museo Nacional de Bellas Artes,Buenos Aires. https://commons.wikimedia.org/wiki/File:Se%C3%B1ora_Manuela_Su%C3%A1rez_Lastra_de_Garmendia_-_Charles_Henri_Pellegrini.jpg.

All artwork in the public domain because the artists have been dead over 70 years.