Elizabeth and Isabel

Mr. Thomas Duffus Hardy, in his evidence on the Camoys Peerage case (June 18. 1838, Evidence, p. 351.) proved that the names of Isabella and Elizabeth were in ancient times used indifferently, and particularly in the reigns of Edward I. and Edward III. Mr. Hardy says in his evidence:— "In the British Museum there is a Latin letter of Elizabeth of Austria, Queen of Charles IX. of France, to Queen Elizabeth of England. In the Latin she is called Elizabetha, and she signs her name Ysabel. In the *Chronicle de St. Denis*, in the year 1180, it is stated, 'Le jor martmes espousa la noble Roine Ysabe…