The Queen of heaven; specifically a title of the Virgin Mary.
Origin
Middle English; earliest use found in Hali Meidenhad: an alliterative homily. From heaven + queen. Compare Middle High German himelküneginne (German Himmelskönigin; compare Old High German himelische kuningin), and post-classical Latin regina coelorum, regina coeli, Old French reine el ciel, Middle French royne des cieulx. Compare earlier heaven king.