Sosibius ptolemy biography
Cleopatra and ptolemy v While the young king gave himself up to luxury and debauchery, the whole administration of the kingdom appears to have been left to Sosibius, who allowed both the finances and military defences to fall into a state of the greatest decay, so that when Antiochus the Great declared war against Ptolemy, and invaded Coele-Syria, it was some time.
Ptolemy v
Sosibius read out Ptolemy IV's will, which made Sosibius and Agathocles regents and placed Ptolemy V in the personal care of his mistress Agathoclea and her mother Oenanthe. Polybius thought that this will was a forgery produced by Sosibius and Agathocles themselves and modern scholars tend to agree with him. Sosibius is not heard of again.Sosibius of tarentum Sosibius was the chief minister of Ptolemy Philopator, king of Egypt. Nothing is known of his origin or parentage, though he may have been a son of Sosibius of Tarentum; nor have we any account of the means by which he rose to power; but we find him immediately after the accession of Ptolemy, exercising the greatest influence over the young.
Ptolemy vi Ptolemy V was the only child of Ptolemy IV and his sister-wife Arsinoe couple had come to power relatively young and ancient historiography remembered Ptolemy IV as being given over to luxury and ceremony, while leaving the government of Egypt largely to two courtiers, Sosibius and Agathocles (the latter being the brother of Ptolemy IV's concubine Agathoclea).