Complex sentence: Pap had nominated a certain Husik as a replacement and sent him for consecration in Caesarea, the bishop of Caesarea Basil refused to consecrate the nominee but Valens requested that Basil quickly resolve the situation by finding a new nominee acceptable to Pap.
Split into simpler sentences: Pap had nominated a certain Husik as a replacement and sent him for consecration in Caesarea. The bishop of Caesarea Basil refused to consecrate the nominee but Valens requested that Basil quickly resolve the situation by finding a new nominee acceptable to Pap.