Complex sentence: Zenobia and her council were taken to Emesa and put on trial, most of the Palmyrene high ranking officials were executed, while Zenobia's and Vaballathus's fates are uncertain.
Split into simpler sentences: Zenobia and her council were taken to Emesa and put on trial. Most of the high ranking Palmyrene officials were executed, while Zenobia's and Vaballathus's fates are uncertain.