It is written in Middle English, not to be confused with Old English which you wouldn't be able to understand at all. It was written during the Great Vowel Shift which was a transformation of the English language into what we know it as today, for the most part.
There is no "Cynthia" in Epithalamion by Edmund Spenser. It is an ode written to his bride, Elizabeth Boyle, on their wedding day in 1594 (published 1595 in Amoretti and Epithalamion).
Gustav Glasenapp has written: 'Zur Vorgeschichte der Allegorie in Edmund Spensers \\'
Edmund Hornby has written: 'Sir Edmund Hornby'
Edmund Steppes has written: 'Edmund Steppes (1873-1968)'
Edmund Blampied has written: 'Edmund Blampied, 1886-1966'
Edmund Dulac has written: 'Edmund Dulac's fairy-book'
Edmund Nizurski has written: 'Klub'
Edmund Dell has written: 'Brazil'
Edmund Weber has written: 'Hindu India'
Edmund Gnefkow has written: 'Hermann Hesse'
Edmund Angel has written: 'The far fortress'
Edmund Waters has written: 'The opera glass'