[456] The date of Chaucer's marriage has not been ascertained. We know that his wife was called Philippa, that one Philippa Chaucer belonged to the queen's household in 1366, and that the Philippa Chaucer, wife of the poet, was at a later date in the service of the Duchess of Lancaster, after having been in the service of the queen. It seems most likely that the two women were the same person: same name, same function, same pension of ten marks, referred to in the same words in public documents, for example: 1º 42 Ed. III., 1368, "Philippae Chaucer cui dominus Rex decem marcas annuatim ad scaccarium percipiendas pro bono servitio per ipsam Philippam Philippe Regine Anglie impenso per literas suas patentes nuper concessit...." 2º 4 Ric. II., 1381, "Philippae Chaucer nuper uni domicellarum Philippae nuper Regine Anglie"--she had died in 1369--"cui dominus Rex Edwardus avus Regis hujus X marcas annuatim ad scaccarium suum percipiendas pro bono servitio per ipsam tam eidem domino Regi quam dicte Regine impenso per literas suas patentes nuper concessit ... in denariis sibi liberatis per manus predicti Galfridi mariti sui...." "Poetical Works," ed. Morris, i. p. 108. Who Philippa was by birth is doubtful, but it seems likely that she was Philippa Roet, daughter of Sir Payne Roet, who hailed, like the queen herself, from Hainault--hence her connection with the queen--and sister of Catherine Roet who became the mistress and then the third wife of John of Gaunt--hence the favour in which the poet and his family stood with the Lancastrians. It seems again very probable, though not absolutely certain, that Thomas Chaucer, who used at different times both the Chaucer and the Roet arms, Speaker of the House of Commons under Henry V., a man of great influence, was one of the children of the poet. [457] Book iv. chap. 40.