Necking drum of an Ionic column from Halicarnassus. It was used as a mortar in the Castle of St Peter. from the Mausoleum at Halicarnassus About 350 BC. The Mausoleum at Halicarnassus or Tomb of Mausolus, was a tomb built between 353 and 350 BC at Halicarnassus (present Bodrum, Turkey) for Mausolus, a satrap in the Persian Empire, and Artemisia II of Caria, who was both his wife and his sister.