 <translate> This is the relevant information: "The Lake Isle of Innisfree" is a twelve-line poem composed of three quatrains written by William Butler Yeats in 1888 and first published in the National Observer in 1890.
So, the final answer is William Butler Yeats. <yor> Ìsọfúnni tó bá a mu nìyí: "The Lake Isle of Innisfree" jẹ́ ewì ìlà méjìlá tí ó ní àwọn quatrain mẹ́ta tí William Butler Yeats kọ ní 1888 tí ó sì kọ́kọ́ jáde nínú ìwé ìròyìn National Observer ní 1890. Nítorí náà, ìdáhùn tó ṣe é gbé karí ni William Butler Yeats. 