[This pretty allegory, or rather conceit, containing one or two passages that for vividness and for delicacy yield to nothing in the whole range of Chaucer’s poetry, had never been printed before the year 1597, when it was included in the edition of Speght.
Before that date, indeed, a Dream of Chaucer had been printed; but the poem so described was in reality 'The Book of the Duchess; or the Death of Blanche, Duchess of Lancaster' — which is not included in the present edition.
Speght says that 'This Dream, devised by Chaucer, seemeth to be a covert report of the marriage of John of Gaunt, the King’s son, with Blanche, the daughter of Henry, Duke of Lancaster; who after long love (during the time whereof the poet feigneth them to be dead) were in the end, by consent of friends, happily married; figured by a bird bringing in his bill an herb, which restored them to life again.
Here also is showed Chaucer’s match with a certain gentlewoman, who, although she was a stranger, was, notwithstanding, so well liked and loved of the Lady Blanche and her Lord, as Chaucer himself also was, that gladly they concluded a marriage between them.
' John of Gaunt, at the age of nineteen, and while yet Earl of Richmond, was married to the Lady Blanche at Reading in May 1359; Chaucer, then a prisoner in France, probably did not return to England till peace was concluded in the following year; so that his marriage to Philippa Roet, the sister of the Duchess Blanche’s favourite attendant Katharine Roet, could not have taken place till some time after that of the Duke.
In the poem, it is represented to have immediately followed; but no consequence need be attached to that statement. Enough that it followed