Complex sentence: On 3 July 529 a synod took place at Orange, occasioned by the consecration of a church built by the governor of Gallia Narbonensis, was attended by fourteen bishops under the presidency of Caesarius of Arles.
Split into simpler sentences: On 3 July 529 a synod took place at Orange, occasioned by the consecration of a church built by the governor of Gallia Narbonensis. It was attended by fourteen bishops under the presidency of Caesarius of Arles.