The house at home was doubtless that in Aldgate, of which the lease to Chaucer, bearing date May, 1374, has been discovered; and to this we may fancy Chaucer walking morning and evening from the riverside, past the Postern Gate by the Tower. Already, however, in 1376, the routine of his occupations appears to have been interrupted by his engagement on some secret service under Sir John Burley; and in the following year, and in 1378, he was repeatedly abroad in the service of the Crown. On one of his journeys in the last-named year he was attached in a subordinate capacity to the embassy sent to negotiate for the marriage with the French King Charles V's daughter Mary to the young King Richard II, who had succeeded to his grandfather in 1377,--one of those matrimonial missions which, in the days of both Plantagenets and Tudors, formed so large a part of the functions of European diplomacy, and which not unfrequently, as in this case at least ultimately, came to nothing. A later journey in May of the same year took Chaucer once more to Italy, whither he had been sent with Sir Edward Berkeley to treat with Bernardo Visconti, joint lord of Milan, and "scourge of Lombardy," and Sir John Hawkwood--the former of whom finds a place in that brief mirror of magistrates, the "Monk's Tale." It was on this occasion that of the two persons whom, according to custom, Chaucer appointed to appear for him in the Courts during his absence, one was John Gower, whose name as that of the second poet of his age is indissolubly linked with Chaucer's own.
So far, the new reign, which had opened amidst doubts and difficulties for the country, had to the faithful servant of the dynasty brought an increase of royal goodwill. In 1381--after the suppression of the great rebellion of the villeins--King Richard II had married the princess whose name for a season linked together the history of two countries the destinies of which had before that age, as they have since, lain far asunder. Yet both Bohemia and England, besides the nations which received from the former the impulses communicated to it by the latter, have reason to remember Queen Anne the learned and the good; since to her was probably due in the first instance the intellectual intercourse between her native and her adopted country. There seems every reason to believe that it was the approach of this marriage which Chaucer celebrated in one of the brightest and most jocund marriage-poems ever composed by a laureate's hand; and if this was so, he cannot but have augmented the favour with which he was regarded at Court. When, therefore, by May, 1382, his foreign journeys had come to an end, we do not wonder to find that, without being called upon to relinquish his former office, he was appointed in addition to the Comptrollership of the Petty Customs in the Port of London, of which post he was allowed to execute the duties by deputy. In November, 1384, he received permission to absent himself from his old comptrollership for a month, and in February, 1385, was allowed to appoint a (permanent) deputy for this office also. During the month of October, 1386, he sat in Parliament at Westminster as one of the Knights of the Shire for Kent, where we may consequently assume him to have possessed landed property. His fortunes, therefore, at this period had clearly risen to their height; and naturally enough his commentators are anxious to assign to these years the sunniest, as well as some of the most elaborate, of his literary productions. It is altogether probable that the amount of leisure now at Chaucer's command enabled him to carry into execution some of the works for which he had gathered materials abroad and at home, and to prepare others. Inasmuch as it contains the passage cited above, referring to Chaucer's official employment, his poem called the "House of Fame" must have been written between 1374 and 1386 (when Chaucer quitted office), and probably is to be dated near the latter year.
Inasmuch as both this poem and "Troilus and Cressid" are mentioned in the Prologue to the "Legend of Good Women," they must have been written earlier than it; and the dedication of "Troilus" to Gower and Strode very well agrees with the relations known to have existed about this time between Chaucer and his brother-poet. Very probably all these three works may have been put forth, in more or less rapid succession, during this fortunate season of Chaucer's life.
A fortunate season--for in it the prince who, from whatever cause, was indisputably the patron of Chaucer and his wife, had, notwithstanding his unpopularity among the lower orders, and the deep suspicion fostered by hostile whisperings against him in his royal nephew's breast, still contrived to hold the first place by the throne. Though serious danger had already existed of a conflict between the King and his uncle, yet John of Gaunt and his Duchess Constance had been graciously dismissed with a royal gift of golden crowns, when in July, 1386, he took his departure for the continent, to busy himself till his return home in November, 1389, with the affairs of Castile, and with claims arising out of his disbursements there. The reasons for Chaucer's attachment to this particular patron are probably not far to seek; on the precise nature of the relation between them it is useless to speculate. Before Wyclif's death in 1384, John of Gaunt had openly dissociated himself from the reformer; and whatever may have been the case in his later years, it was certainly not as a follower of his old patron that at this date Chaucer could have been considered a Wycliffite.