Final answer:
William Blake is the predecessor of the Romantic Movement known for starting as a painter but later transitioning to poetry, particularly for his works "Songs of Experience" and "Songs of Innocence," with famous poems like "The Tyger" and "The Lamb."
Step-by-step explanation:
The predecessor of the Romantic Movement known for starting as a painter but later transitioning to poetry, particularly for his works "Songs of Experience" and "Songs of Innocence," with famous poems like "The Tyger" and "The Lamb," is William Blake. William Blake lived from 1757 to 1827 and is considered one of the key figures of Romanticism.