Hélène and Judith, siamese twins known as The Hungarian Sisters
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After an illustration by French illustrator, Jacques de Sève.
Helen and Judith Gófitz of Szőny, Hungary (1701–1723), who enjoyed a brief career in music before being sent to live in a convent (https://en.wikipedia.org/wiki/Conjoined_twins)
siamese twinssisterstwinsline engraving