Prothalamion
Quick answer: A prothalamion is a poem celebrating a betrothal or forthcoming wedding, a term Edmund Spenser coined in 1596 for his poem on the Thames. Learn the form.
A prothalamion is a poem celebrating a betrothal or a forthcoming wedding, as distinct from the epithalamium, which celebrates the wedding day itself. The word did not exist until Edmund Spenser invented it in 1596 as the title of his Prothalamion, subtitled A Spousall Verse, written for the double betrothal of Elizabeth and Katherine Somerset. He needed a name for a poem about a marriage that had not yet happened, so he built one from Greek parts, before the bridal chamber.
One poem, then, founded the entire genre, and the genre has remained small and distinguished ever since. Poets use the term for any verse that blesses a couple on the way to marriage: engagement poems, poems for the eve of a wedding, poems that celebrate promise rather than ceremony.
Spenser's Original
The Prothalamion follows two swans, the brides to be, gliding down the Thames toward their betrothal feast, while nymphs gather flowers and the poet, unemployed and melancholy at the poem's edges, watches from the bank. Each of its ten stanzas ends with the refrain asking the sweet Thames to run softly until the song ends, one of the most famous returning lines in English.
That refrain had a second life: T. S. Eliot set it into The Waste Land, letting Spenser's silver river run through a modern scene of litter and departed nymphs, proof of how durable a good refrain is.
How It Differs From the Epithalamium
The epithalamium's clock is the wedding day, dawn to night, ending at the marriage bed. The prothalamion's time is beforehand: the approach, the promise, the journey downriver. Its mood is therefore anticipatory, and it can hold more shadow; Spenser lets his own disappointments into the poem in a way a wedding day song could not easily allow. If the epithalamium is the toast, the prothalamion is the walk to the venue.
How to Use It in Your Own Poems
Write one for an engagement, for friends about to marry, or for any love still in its promising stage. Borrow Spenser's two best devices: a journey, since movement toward the ceremony gives the poem its spine, and a refrain, since blessing is ritual and ritual repeats. A river, a motorway, a train line north, any current that carries the couple will serve as your Thames.
What poets can take from this
- Structure the poem as a journey toward the wedding rather than a scene at it.
- Use a refrain and let its meaning settle deeper with each return.
- Let anticipation include a little honest shadow; Spenser did.
- Address the landscape the couple moves through and make it a well wisher.
- Read Spenser's ten stanzas aloud to hear how a long blessing keeps its lift.
Try it yourself
Write a prothalamion for a couple travelling to their own wedding, on a night coach, a ferry, a delayed train, with a refrain addressed to the vehicle or the water, asking it to carry them gently until the song is done.
Questions
What is the difference between a prothalamion and an epithalamium?
Timing. The prothalamion celebrates the betrothal or approach to marriage, while the epithalamium celebrates the wedding day and night themselves. Spenser wrote the founding example of one and the supreme English example of the other.
Did Spenser really invent the word prothalamion?
Yes. No earlier use is known; he coined it for his 1596 poem for the Somerset sisters' double betrothal, modelling it on epithalamion with the Greek prefix meaning before.
By the Writory editorial team, reviewed by working poets. Updated July 2026.
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