Lady Katherine Grey

Katherine Seymour, Countess of Hertford was a younger sister of Lady Jane Grey.

25 August 1540

Born on the same birth day (25 August): Ally Walker • Jim Smith (cricketer, born 1906) • Jonathan Togo • Nick Schultz (ice hockey) • Shock G • Vivek Razdan

Born in the same month (August 1540): Joseph Justus Scaliger