There are eleven stone cairns on the Balmoral estate in Deeside, Scotland, and a single cairn on the adjoining Birkhall estate. The cairns commemorate members of the British royal family and events in their lives. The majority of the cairns were erected by Queen Victoria. The largest cairn was erected by Victoria in memory of her husband Prince Albert. The Ballochbuie Cairn marks the purchase by Victoria of the Ballochbuie forest. A cairn to commemorate John Brown was erected by Victoria after Brown's death, it was later removed at the behest of Edward VII who disliked Brown.