Tiriel is a
narrative poem by
William Blake, written
c.1789. Considered the first of his
prophetic books, it is also the first poem in which Blake used free
septenaries, which he would go on to use in much of his later verse.
Tiriel was unpublished during Blake's lifetime and remained so until 1874, when it appeared in
William Michael Rossetti's
Poetical Works of William Blake. Although Blake did not
engrave the poem, he did make twelve
sepia drawings to accompany the rough and unfinished manuscript, although three of them are considered lost as they have not been traced since 1863.