Definition: Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.
Input: Paragraph- Sent 1: Alexander's body was laid in a gold anthropoid sarcophagus that was filled with honey, which was in turn placed in a gold casket.
Sent 2: According to Aelian, a seer called Aristander foretold that the land where Alexander was laid to rest "would be happy and unvanquishable forever".
Sent 3: Perhaps more likely, the successors may have seen possession of the body as a symbol of legitimacy, since burying the prior king was a royal prerogative.
Sent 4: While Alexander's funeral cortege was on its way to Macedon, Ptolemy seized it and took it temporarily to Memphis.
Sent 5: His successor, Ptolemy II Philadelphus, transferred the sarcophagus to Alexandria, where it remained until at least late Antiquity.
Sent 6: Ptolemy IX Lathyros, one of Ptolemy's final successors, replaced Alexander's sarcophagus with a glass one so he could convert the original to coinage.
Sent 7: The recent discovery of an enormous tomb in northern Greece, at Amphipolis, dating from the time of Alexander the Great has given rise to speculation that its original intent was to be the burial place of Alexander.
Sent 8: This would fit with the intended destination of Alexander's funeral cortege.
Sent 9: Pompey, Julius Caesar and Augustus all visited the tomb in Alexandria, where Augustus, allegedly, accidentally knocked the nose off.
Sent 10: Caligula was said to have taken Alexander's breastplate from the tomb for his own use.
Sent 11: Around AD 200, Emperor Septimius Severus closed Alexander's tomb to the public.
Sent 12: His son and successor, Caracalla, a great admirer, visited the tomb during his own reign.
Sent 13: After this, details on the fate of the tomb are hazy.
Sent 14: The so-called "Alexander Sarcophagus", discovered near Sidon and now in the Istanbul Archaeology Museum, is so named not because it was thought to have contained Alexander's remains, but because its bas-reliefs depict Alexander and his companions fighting the Persians and hunting.
Sent 15: It was originally thought to have been the sarcophagus of Abdalonymus (died 311 BC), the king of Sidon appointed by Alexander immediately following the battle of Issus in 331.
Sent 16: However, more recently, it has been suggested that it may date from earlier than Abdalonymus' death. 
Question: The so-called "Alexander Sarcophagus" was originally thought to have been the sarcophagus of who?.
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Abdalonymus.