Cedrenus records that "Gregorius et Pancratius fratres germani
Taron" joined Emperor Nikeforos Phokas who invested them with "patricia dignitate", dated to [968/69] from the context.
http://fmg.ac/Projects/MedLands/BYZANTINE%20NOBILITY.htm#_ftnref782
A 14th century manuscript, preserved at the convent of St Stefanos in Thessaly, names Bagration and Gregorios as the two sons of "Taronites". Magistros. Dux of Thessaloniki. Cedrenus records that "prĉfectus Gregorius" was killed during the Bulgarian war, dated to [995] from the context.
