Why did spenser write faerie queene?

Edmund Spenser wrote "The Faerie Queene" to celebrate Queen Elizabeth I and the Tudor dynasty, while also promoting the ideals of virtue and morality. The poem serves as an allegory for the struggle between good and evil, showcasing the virtues of holiness, temperance, chastity, friendship, justice, and courtesy. Additionally, Spenser aimed to establish a distinctly English literary tradition, drawing on classical and medieval influences. Ultimately, it reflects his vision of a harmonious society under the guidance of a noble ruler.