Ptolemy III Euergetes
In Ptolemaic Egypt, the solar crown could also be a radiate diadem, modeled after the type worn by Alexander the Great (as identified with the sun god Helios) in art from the mid-2nd century BC onward. It was perhaps influenced by contact with the Shunga Empire, and a Greco-Bactrian example is depicted at the great stupa of Bharhut. The first ruler of Egypt shown wearing this version of a solar crown was Ptolemy III Euergetes (246–222 BC).