Margaret was 12 when she married the 24-year-old Edmund Tudor on 1 November 1455. The Wars of the Roses had just broken out; Edmund, a Lancastrian, was taken prisoner by Yorkist forces less than a year later. He died of the plague in captivity at Carmarthen on 3 November 1456, leaving a 13-year-old widow who was seven months pregnant with their child.
It has yet to be proven that intelligence has any survival value —Arthur C. Clarke