Ethiopia / ዘውዲቱ (Empress Zewditu)

Zewditu (also spelled Zawditu or Zauditu; Ge'ez: ዘውዲቱ) was Empress of Ethiopia from 1916 to 1930. The first female head of an internationally recognized state in Africa in the 19th and 20th centuries, and the first Empress regnant of the Ethiopian Empire perhaps since the legendary Makeda, the Queen of Sheba, her reign was noted for the reforms of her Regent and designated heir Ras Tafari Makonnen (who succeeded her as Emperor Haile Selassie I), about which she was at best ambivalent and often stridently opposed, due to her staunch conservatism and strong religious devotion.

Zewditu was also the last Empress regnant in world history.