The Horti Pompeiani was the name of two gardens built by Pompey the Great. One surrounded the Theatre of Pompey, built in 55 BC. The other were a set of private gardens on the 'Carinae' slope of the Esquiline Hill, surrounding Pompey's villa, known as the 'Domus Rostrata', since Pompey had decorated it with the prows or 'rostra' of the pirate ships he had defeated. After Pompey's death, Julius Caesar gave these private gardens to Mark Antony.