When the war with France resumed and both Suffolk and John Cornwall readied armies for another invasion in May of 1436, custody of Charles [Duke of Orléans] became the responsibility of Reynald Cobham of Sterborough Castle, Lingfield, Surrey, fourteen years his senior and the father-in-law of Humphrey, duke of Gloucester. Gloucester, as I have mentioned, seems to have disliked Charles and may, in any event, have been too busy to look after the duke of Orléans himself. The move to Surrey brought Charles closer to London (Cobham escorted him there in the spring of 1437 and 1438) and it also provided him with the opportunity to meet with his brother, kept at Speldhurst, Kent, by a soldier too old to return to France, Richard Waller. Reynold Cobham (1381–1446) was himself no soldier at all and had never been called to Parliament. He may have been a person of some refinement, as the founding of Lingfield College in 1431 by himself and his second wife, Anne Clifford, would suggest. The couple donated a substantial library to Lingfield College and Cobham’s celebrated daughter, Eleanor, Gloucester’s wife, possessed a copy of the Ancrene Riwle which she perhaps acquired after she, like the mother of Charles of Orléans, was accused of witchcraft and began her own turn in prison. One of Reynold Cobham’s tenants was Stephen Scrope, the translator of Christine de Pisan’s The Epistle of Othea, a French version of Cicero’s De senectute, Guillaume de Tigonville’s Dit moraulx des philosophes, and The boke of noblesse. Though Charles was no longer in England when Scrope began these translations in the 1440s, both and he brother were familiar with these works and had copies of several of them in their possession while they were in Surrey and Kent.
William Askins, "The Brothers Orléans and their Keepers", Charles d’Orléans In England (1415–1440) (D. S. Brewer 2000)
Some notes: Reynold (or Reginald) Cobham was a soldier: he had fought at Agincourt and campaigned in France in the retinue of Humphrey, Duke of Gloucester. It is generally assumed that it was his service with Gloucester that resulted in Eleanor securing a position in Jacqueline of Hainault's household. He may have also served in Gloucester's ill-fated Hainault campaign.
Eleanor acquired her copy of the Ancrene Riwle prior to her imprisonment; the ex libris records she was given it by Joan Holland (nee Stafford), Countess of Kent at Pleasance (later Greenwich Palace). This must have occurred prior to her downfall, as she never returned to Pleasance throughout the scandal.