Ekaterinhof or Catherinehof (Russian: Екатеринго́ф) is a historic district in the south-west of St Petersburg, Russia. Its name originated in 1711, when Peter the Great presented the Ekanerinhof Island and adjacent lands along the Ekateringofka River to his wife Catherine, whose name they memorialize. Apart from the garden, which goes back to the 18th century, places of interest in Catherinehof include the Narva Triumphal Gate, the metochion of the Valaam Monastery, and a granite column reputedly commissioned by Catherine I to commemorate her executed lover William Mons.