Final answer:
According to Edgar Allan Poe's poem 'Annabel Lee', the real cause of her death was the envy and anger of the angels in heaven who were jealous of the love between the poet and Annabel Lee.
Step-by-step explanation:
The real cause of Annabel Lee's death, according to the poet in the poem 'Annabel Lee' by Edgar Allan Poe, is the envy and anger of the angels in heaven who were jealous of the love between the poet and Annabel Lee. They sent a wind chill that caused her to become ill and ultimately led to her death. The poet describes her death as being caused by the separation caused by death itself.
The true cause of her death, according to the poet, is the power of love. The angels in heaven, represented by the sea, could not tolerate the depth and intensity of the love between the poet and Annabel Lee. This led to their envy and anger, which ultimately resulted in Annabel Lee's death. The poem explores the theme of the power of love to transcend death and the eternal connection between the poet and Annabel Lee.