Galba (27.6-28.1)

Marius Celsus also came into the camp. There many denounced him for trying to persuade the soldiers to defend Galba, and the majority clamoured for his death, but Otho did not wish it; however, since he was afraid to oppose them, he said he would not put Celsus to death so quickly, since there were matters about which he must first question him. He therefore ordered that he be fettered and kept under guard, and handed over to those in whom he put most trust.

A senate was at once convened. And as if they were now other men, or had other gods to swear by, they united in swearing an oath to support Otho—an oath which he himself had sworn in support of Galba, but had not kept. Moreover, they gave him the titles of Caesar and Augustus, while the dead bodies, all headless in their consular robes, were still strewn over the forum.