John V, Duke of Brittany

John V, sometimes numbered as VI, bynamed John the Wise, was Duke of Brittany and Count of Montfort from 1399 to his death. His rule coincided with the height of the Hundred Years' War between England and France. John's reversals in that conflict, as well as in other internal struggles in France, served to strengthen his duchy and to maintain its independence.

24 December 1389

Born on the same birth day (24 December): Alexandrine of Mecklenburg-Schwerin • Feodor Stepanovich Rojankovsky • James Prescott Joule • Julie Bondeli • Liu Dong • Mary Barra • Ray Bryant • Selim III • Sigrid Schauman • Steve Smith (comedian) • Tomas Kalnoky

Born in the same month (December 1389): Zbigniew Oleśnicki (cardinal)