Tiriel is the eponymous character in a poem by William Blake written c.1789, and considered the first of his prophetic books.
Tiriel subsequently set himself up as a tyrant in the west, driving one of his brothers, Ijim, into exile in the wilderness, and chaining the other, Zazel, in a cave in the mountains.
Tiriel then made slaves of his own children, until eventually, led by the eldest son, Heuxos, they too rebelled, overthrowing their father.
However, when he visits the Vales of Har, Tiriel falsely claims to be from the north, which is assigned to Urthona, representative of the imagination.
[3] In terms of Tiriel's character, David V. Erdman believes that he is partially based on King George III, who suffered bouts of insanity throughout 1788 and 1789.
Erdman argues that "the pattern of Tiriel's "madness and deep dismay" parallels that of King George's,"[4] and thus the poem is "a symbolic portrait of the ruler of the British Empire.
[6] Bloom believes that Tiriel is also partially based on William Shakespeare's King Lear and, in addition, is a satire "of the Jehovah of deistic orthodoxy, irascible and insanely rationalistic.
The kind of god which the existence of such tyrannical papas suggests is the jealous Jehovah of the Old Testament who is equally fertile in curses and pretexts for destroying his innumerable objects of hatred.
"[8] Although Tiriel himself is not featured in any of Blake's later work, he is often seen as a foreshadowing of Urizen, limiter of men's desires, embodiment of tradition and conformity, and a central character in Blake's mythology, appearing in Visions of the Daughters of Albion (1793), America a Prophecy (1793), Europe a Prophecy (1794), The Book of Urizen (1794), The Book of Ahania (1795), The Book of Los (1795), The Song of Los (1795), Vala, or The Four Zoas (1796-1803), Milton a Poem (1804-1810), and Jerusalem The Emanation of the Giant Albion (1804-1820).
Tiriel is similar to Urizen insofar as "he too revolted, set himself up as a tyrant, became a hypocrite, ruined his children by his curse, and finally collapsed.