Note 341 — VARIOUS QUESTIONS CONNECTED WITH THE FOREGOING SUBJECTS, ELUCIDATED BY PHYSIOLOGICAL RESEARCHES.
Reading edition
The children of John of Gaunt, Duke of Lancaster, by Catherine Swinford, though born in adultery, he being then married, were legitimised by Act of Parliament in 1397; the Duke having married his mistress in the preceding year; see 9 Froisard’s Chron. 225.