Ptolemy II

Ptolemy II Coin

The above image is from Coins & Medals On Line

Egypt Tours and Travel web page says:

Ptolemy II Philadelphus

282-246 B.C.

Ptolemaic Dynasty

Ptolemy II Philadelphus, which means 'Brother/Sister-loving', was the second ruler of the Ptolemaic Dynasty. His construction efforts included that of building the canal that linked the Nile to the Gulf of Suez. He was married to his full sister Arsinoe II. He also began a tradition of a four-yearly celebration to honor his father. It was intended to have a status equal to the Olympic games. According to the "Letter of Aristeas", Ptolemy II requested 70 Jewish scholars come from Jerusalem to translate the Pentateuch into a Greek version to be placed into the Great Library collection. He died on January 29, 246 BC.
The Pentateuch is the first five books of the Old Testament.

Ashraf Al Shafaki's Blog that has some information about Ptolemy II. Look for the July 7, 2007 entries.