CS1: Julian\u2013Gregorian uncertainty

Marie Marvingt (20 February 1875 – 14 December 1963) was a French athlete, mountaineer, aviator, and journalist. She won numerous prizes for her sporting achievements including those of swimming, cycling, mountain climbing, winter sports, ballooning, flying, riding, gymnastics, athletics, rifle shooting, and fencing. She was the first woman to climb many of the peaks in the French and Swiss Alps. She was a record-breaking balloonist, an aviator, and during World War I she became the first female combat pilot. She was also a qualified surgical nurse, was the first trained and certified flight nurse in the world, and worked for the establishment of air ambulance services throughout the world. In 1903 M. Château de Thierry de Beaumanoir named her the fiancée of danger, which newspapers used to describe her for the rest of her life. It is also included on the commemorative plaque on the façade of the house where she lived at 8 Place de la Carrière, Nancy.

Gabriel Jean Baptiste Ernest Wilfrid Legouvé (pronounced [ɡabʁijɛl ʒɑ̃ batist ɛʁnɛst wilfʁid ləɡuve]; 14 February 1807 – 14 March 1903) was a French dramatist.

Louis Gustave Fortuné Ratisbonne (29 July 1827 – 24 September 1900) was a French man of letters.
He was born at Strasbourg. He was the son of the banker Adolphe Ratisbonne and his wife Charlotte Oppenheim (daughter of Salomon Oppenheim), and the nephew of the priests Marie Theodor Ratisbonne and Marie-Alphonse Ratisbonne. He studied at the school of his native town and at the College Henry IV in Paris. He was connected with the Journal des Debats from 1853 to 1876; became librarian of the palace of Fontainebleau in 1871, and three years later to the Senate.
Louis Ratisbonne's most important work was a verse translation of the La Divina Commedia (The Divine Comedy), in which the original is rendered tercet by tercet into French. L'Enfer (1852) was crowned by the Academy; Le Purgatoire (1857) and Le Paradis 1859) received the prix Bordin.
He is also the author of some charming fables and verses for children: La Comédie enfantine (1860), Les Figures jeunes (1865) and others. He was literary executor of Alfred de Vigny, whose Destinées (1864) and Journal d'un poète (1867) he published. Ratisbonne died in Paris.

Through the influence of Thiers, Ratisbonne was appointed librarian at Fontainbleau, where he succeeded Octave Feuillet, and later he was transferred to the Palais du Luxembourg.

Luise Hensel (30 March 1798 to 18 December 1876) was a German teacher and religious poet, who influenced the romantic style of her friend and fellow poet, Clemens Brentano.

Alfred Edmund Brehm (German pronunciation: [ˈalfʁeːt ˈʔɛtmʊnt ˈbʁeːm]; 2 February 1829 – 11 November 1884) was a German zoologist, writer, director of zoological gardens and the son of Christian Ludwig Brehm, a famous pastor and ornithologist.
Through the book title Brehms Tierleben, which he co-authored with Eduard Pechuël-Loesche, Wilhelm Haacke, and Richard Schmidtlein, his name became a household word for popular zoological literature.

Wilhelm Dörpfeld (26 December 1853 – 25 April 1940) was a German architect and archaeologist, a pioneer of stratigraphic excavation and precise graphical documentation of archaeological projects. He is famous for his work on Bronze Age sites around the Mediterranean, such as Tiryns and Hisarlik (the site of the legendary city of Troy), where he continued Heinrich Schliemann's excavations. Like Schliemann, Dörpfeld was an advocate of the historical reality of places mentioned in the works of Homer. While the details of his claims regarding locations mentioned in Homer's writings are not considered accurate by later archaeologists, his fundamental idea that they correspond to real places is accepted. Thus, his work greatly contributed to not only scientific techniques and study of these historically significant sites but also a renewed public interest in the culture and the mythology of Ancient Greece.

Ulrich von Hutten (21 April 1488 – 29 August 1523) was a German knight, scholar, poet and satirist, who later became a follower of Martin Luther and a Protestant reformer.
By 1519, he was an outspoken critic of the Roman Catholic Church. Hutten was a bridge between the Renaissance humanists and the Lutheran Reformation.
He was a leader of the Imperial Knights of the Holy Roman Empire along with Franz von Sickingen. Both were the leaders in the Knights' Revolt.

Prince Maurice of Battenberg , (Maurice Victor Donald; 3 October 1891 – 27 October 1914) was a member of the Hessian princely Battenberg family and the extended British royal family, and the youngest grandchild of Queen Victoria. He was known as Prince Maurice throughout his life, since he died before the British royal family relinquished their German titles during World War I and the Battenbergs changed their name to Mountbatten.

Karin Anny Hannelore Reinbold von Aroldingen (9 September 1941 – 5 January 2018) was a German ballet dancer. She danced as a soloist at the Frankfurt Opera Ballet before joining the New York City Ballet in 1962 after receiving a personal invitation from George Balanchine. She was named as one of Balanchine's main beneficiaries in his will. Von Aroldingen retired from New York City Ballet in 1984, having reached the rank of principal dancer in 1972. In her later life, she worked as a répétiteur for the Balanchine Trust, for which she was also a founder, staging his ballets for various companies.

Hendrik ("Henk") Timmer (Dutch pronunciation: [ˈɦɛn.drɪk ˈtɪmər.]; 8 February 1904 – 13 November 1998) was a Dutch sportsman, who primarily played tennis. Born in Utrecht, Timmer also won golf tournaments, became Dutch squash champion, played badminton and hockey. He died aged 94 in Bilthoven, four days before his former doubles partner Kea Bouman. Apart from being a Dutch tennis champion, he was Swiss, Welsh and Scottish indoors champion as well.