The Hecatomnids did not produce babies but they did produce a famous monument, one of the Seven Wonders of the ancient world.109 This monument, the Mausoleum, was not simply a very elaborate tomb and commemorative for Mausolus.110 It was also a dynastic monument in two senses. For one thing, of the three hundred or so human figures on the monument, a number may have been images of male and female members of the dynasty and, of course, of the royal pair. If so, this was a memorial to the entire dynasty, not just to Mausolu
Producing children with all of the sibling marriages certainly would've been an issue. This memorial to the dynasty was a clever idea, especially because this was essentially the cause of their fall. No reproduction can truly occur with sibling marriages.