Its nominal then crown passed to Vaballathus and this city then seized Egypt before being defeated at Antioch and Emesa by the forces of Aurelian.
This city became a center of the final flourishing of the dynamic monarchianism heresy by granting harbor to Paul of Samosata.  One of its kings was given the title "corrector totius Orientis" after defeating Quietus and becoming a bulwark against the Sassanians. Later, its princes Herennianis and Timolaus were marched in a triumph after its destruction following the assassinations of Herodes and Odaenathus.  Its nominal then crown passed to Vaballathus and this city then seized Egypt before being defeated at Antioch and Emesa by the forces of Aurelian. For 10 points, name this seat of power for the regent Zenobia.
This city became a center of the final flourishing of the dynamic monarchianism heresy by granting harbor to Paul of Samosata.  
Palmyra or Tudmor