M. Sandras asserts that the history of Ceyx and Alcyone is borrowed from the Dit de la Fontaine Amoureuse, by Machault, whereas it is evident that Chaucer took care to consult his favourite Ovid, though he also copied several expressions from Machault's poem. Consult Max Lange, as well as Furnivall's Trial Forewords to Chaucer's Minor Poems, p. 43. Surely, Chaucer himself may be permitted to know; his description of the book, viz. in ll. 57-59, applies to Ovid, rather than to Machault's Poems. But the fact is that we have further evidence; Chaucer himself, elsewhere, plainly names Ovid as his authority. See Cant. Tales, Group B, l. 53 (as printed in vol. v.), where he says—
'For he [Chaucer] hath told of loveres up and doun
Mo than Ovyde made of mencioun
In his Epistelles, that been ful olde.
What sholde I tellen hem, sin they ben tolde?
In youthe he made of Ceys and Alcion;' &c.
It is true that Chaucer here mentions Ovid's Heroides rather than the Metamorphoses; but that is only because he goes on to speak of other stories, which he took from the Heroides; see the whole context. It is plain that he wishes us to know that he took the present story chiefly from Ovid; yet there are some expressions which he owes to Machault, as will be shown below. It is worth notice, that the whole story is also in Gower's Confessio Amantis, bk. iv. (ed. Pauli, ii. 100); where it is plainly copied from Ovid throughout.
Ten Brink (Studien, p. 10) points out one very clear indication of Chaucer's having consulted Ovid. In l. 68, he uses the expression to tellen shortly, and then proceeds to allude to the shipwreck of Ceyx, which is told in Ovid at great length (Met. xi. 472-572). Of this shipwreck Machault says never a word; he merely says that Ceyx died in the sea.
There is a chapter De Alcione in Vincent of Beauvais, Speculum Naturale, bk. xvi. c. 26; made up from Ambrosius, Aristotle, Pliny (bk. 10), and the Liber de Natura Rerum.