She was somewhat gaunt, and constantly ill from tuberculosis and psychological ailments. Conditions are characterized by extreme wasting of the muscles and a gaunt expression. Katherine became governess to the daughters of John of Gaunt. James tells Letty that he is renaming the "Jenny Peak" the "Letty Gaunt". Marvolo Gaunt was the last Gaunt family patriarch. This house descended from Edward III's third surviving son, John of Gaunt. The father of the twins Philippa and John Gaunt. The title refers to both Gaunt and Wilder. John of Gaunt died at Leicester Castle in 1399. Henry IV's claim to the throne was through his father, John of Gaunt. The Stone was later embedded in a ring that ended up belonging to Marvolo Gaunt. John of Gaunt was Blanche Swynford's godfather. Ghent was the birthplace of John of Gaunt, Duke of Lancaster. John of Gaunt died in February 1399. The Gaunt family speak Parseltongue among themselves.