Maria Sibylla Merian
Maria Sibylla Merian (2 April 164713 January 1717) was a German-born naturalist and scientific illustrator, a descendant of the Frankfurt branch of the Swiss Merian family. Merian was one of the first naturalists to observe insects directly.
Maria of Bosnia
Maria's parentage and connection to the House of Kotromanić is uncertain. King Louis I of Hungary, husband of Ban Stephen II of Bosnia's daughter Elizabeth, apparently mentions her in a charter as Stephen's sister. Some historiographers have interpreted this literally, considering her a daughter of Ban Stephen I of Bosnia and Elizabeth of Serbia born in 1315. This, however, is very unlikely: it would mean that she married a (never-married and childless) nobleman in her forties, had her youngest children in her fifties, and lived to be over 90 years old. The 16th-century historian Oswald Gabelkover names her a younger "daughter" of Ban Stephen II. This view is supported by King Louis and Queen Elizabeth's choice of names for their elder daughters, Catherine and Maria, purportedly named after the Queen's supposed sisters, Catherine and Maria. That would make Maria a daughter of Stephen's last wife, Elizabeth of Kuyavia, and place her year of birth shortly after 1335. Two other theories attribute Maria's parentage to Stephen's brother Vladislaus and Jelena Šubić or to another younger brother Ninoslaus.