Together, Hafez, a giant of world literature; Jahan Malek Khatun, an eloquent princess; and Obayd-e Zakani, a dissolute satirist, represent one of the most remarkable literary flowerings of any era. All three lived in the famed city of Shiraz, a provincial capital of south-central Iran, and all three drew support from arts-loving rulers during a time better known for its violence than its creative brilliance. Here Dick Davis, an award-winning poet widely...