Catherine I was Empress of Russia from 8 February 1725 until her death in 1727. She was previously empress consort of Russia from 1721 to 1725 as the second wife of Peter the Great, and tsaritsa consort from 1712 to 1721.
Biography from Wikipedia, available under CC BY-SA 4.0.
Also born on April 15
- Leonardo da Vinci1452 · Italian polymath
- Emma Watson1990 · English actress
- Nikita Khrushchev1894 · Leader of the Soviet Union from 1953 to 1964
- Emma Thompson1959 · English actress and screenwriter
- Kim Il Sung1912 · Leader of North Korea from 1948 to 1994
- Leonhard Euler1707 · Swiss mathematician
- Maisie Williams1997 · British actress
- Claudia Cardinale1938 · Italian-Tunisian actress
Also born in 1684
- Antoine Watteau1684 · French painter
- Ludvig Holberg1684 · Danish–Norwegian writer, philosopher and historian
- Charles Alexander, Duke of Württemberg1684 · Duke of Württemberg from 1733 to 1737
- Edward Vernon1684 · Royal Navy officer
- Kurt Christoph Graf von Schwerin1684 · German general
- Jean-Baptiste van Loo1684 · French painter
- Johann Gottfried Walther1684 · German music theorist and musician
- Jean Astruc1684 · French physician and professor