A Faravahar floats above, giving its blessing to the king. One figure appears to have been added after the others were completed, as was Darius's beard, which is a separate block of stone attached with iron pins and lead. After the fall of the Persian Empire's Achaemenid Dynasty and its successors, and the lapse of Old Persian cuneiform writing into disuse, the nature of the inscription was forgotten, and fanciful explanations became the norm. For centuries, instead of being attributed to Darius the Great, it was believed to be from the reign of Khosrau II of Persia—one of the last Sassanid kings, who lived over 1000 years after the time of Darius the Great. The inscription is mentioned by Ctesias of Cnidus, who noted its existence some time around 400 BC and mentioned a well and a garden beneath the inscription. He incorrectly concluded that the inscription had been dedicated "by Queen Semiramis of Babylon to Zeus". Tacitus also mentions it and includes a description of some of the long-lost ancillary monuments at the base of the cliff, including an altar to "Herakles". What has been recovered of them, including a statue dedicated in 148 BC, is consistent with Tacitus's description. Diodorus also writes of "Bagistanon" and claims it was inscribed by Semiramis. A legend began around Mount Behistun (Bisotun), as written about by the Persian poet and writer Ferdowsi in his "Shahnameh" ("Book of Kings") , about a man named Farhad, who was a lover of King Khosrow's wife, Shirin. The legend states that, exiled for his transgression, Farhad was given the task of cutting away the mountain to find water; if he succeeded, he would be given permission to marry Shirin. After many years and the removal of half the mountain, he did find water, but was informed by Khosrow that Shirin had died. He went mad, threw his axe down the hill, kissed the ground and died. It is told in the book of Khosrow and Shirin that his axe was made out of a pomegranate tree, and, where he threw the axe, a pomegranate tree grew with fruit that would cure the ill. Shirin was not dead, according to the story, and mourned upon hearing the news. In 1598, the Englishman Robert Sherley saw the inscription during a diplomatic mission to Persia on behalf of Austria, and brought it to the attention of Western European scholars.