Maria Cunitz

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Maria Cunitz (1610–22 August 1664) was a Silesian astronomer and one of the most notable female scientists of her time. Born in Wohlau (now Wołów, Poland), she grew up in a well-educated family and learned many subjects at home. She spoke seven languages and excelled in mathematics, medicine, poetry, and the arts.

Maria married twice. Her first husband was David von Gerstmann, whom she wed in 1623; he died in 1626. In 1630 she married Elias von Löwen, a physician who encouraged her astronomy. With him she studied the skies and made observations of Venus in 1627 and Jupiter in 1628. They had three sons: Elias Theodor, Anton Heinrich, and Franz Ludwig. During the Thirty Years’ War, they took refuge in a Cistercian convent in Olobok (Poland). There Maria continued her work, expanding the Rudolphine Tables.

In 1650 Maria self-published Urania propitia in German and Latin. The book offered new astronomical tables and a simpler method for calculating a planet’s position in its orbit over time, building on Kepler’s Rudolphine Tables but using easier calculations that avoided some complex logarithms. Elias von Löwen wrote the preface, stressing that the work was Maria’s alone. Urania propitia helped advance the German scientific language and inspired others to seek clearer, more reliable methods. However, the work did not have a wide impact at the time because only a few copies were printed; Parisian astronomer Ismaël Boulliau noted and criticized it. The book’s influence grew slowly, and much of Maria’s correspondence and tools were lost when a fire destroyed their home and many manuscripts.

Maria Cunitz died in 1664 in Pitschen. Her legacy lives on in the scientific world: the Cunitz crater on Venus is named after her, and the minor planet 12624 Mariacunitia bears her name. She has been celebrated as the “Silesian Pallas” for her intellect and perseverance. A monument in Świdnica honors her with a bronze sculpture holding Urania propitia. Maria is often described as Silesian, with debates about whether to call her German or Polish; she published in German and spoke multiple languages, reflecting the diverse culture of her homeland.