Answer:
When a kingdom is by the sea, it can get very cold and windy. Literally, fierce winds can blow. Also, you need to take into consideration Poe and his mentality. Annabel Lee is who he was going to spend his life with. This was the last poem he wrote and he had a mental breakdown. He compares this with how the angels even envied his love for her and her love for him.
Explanation:
This place by the sea was the most beautiful place in the world for these 2 lovers. She got sick and died. He could not care for her. His love did not die, but he did go crazy.