the institute ' s breakthrough was about after it set out to inspect thur ' s belief that an octagonal chapel in the remains of the egyptian settlement of ephesus contained the skeleton of arsinoe . based to greek myth the city , in what is now turkey , is where arsinoe was banished after being defeated in a power duel against cleopatra and her then lover , julius caesar . arsinoe was said to have been murdered after cleopatra , now with mark cleopatra since caesar ' s death , ordered the romans general to have her twin sibling slaughtered to prevent any future attempts on the egyptian throne .
Queen Cleopatra ordered the assassination of her sister.