Context : part-Egyptian through her mother. According to the Augustan History, an imperial declaration of hers in 269 was sent to the citizens of Alexandria, Egypt, describing the city as ``my ancestral city''. This declaration only fits Vaballathus, the son of Zenobia. The historian Callinicus dedicated a ten-book history of Alexandria to a ``Cleopatra'', who can only be Zenobia. 
Subject : Zenobia 
Relation : spouse
What is Zenobia's spouse's name?