Note 56 — Chapter X
Reading edition
Catherine, Duchess of Lancaster, had three sons: the second was the famous Cardinal Beaufort; the eldest (created Earl of Somerset,) was grandfather to Henry the Seventh, and consequently ancestor to the whole race of Tudor: thus from the sister of Chaucer's wife are descended all the English sovereigns, from the fifteenth century; and likewise the present family of Somerset, Dukes of Beaufort.