A man in his 60s has died after a possible stoning attack at Lullingstone Castle at Eynsford, Kent.
Officers were called at 5.21pm yesterday to reports of a disturbance.
It has been reported that rocks were thrown at the victim close to a lake in the grounds.
The castle, which has been closed during Lockdown, has been home to the Hart-Dyke family since the 15th century.
Interview with neighbour Victoria Horn
It is reported he may have been involved in an altercation with two boys or teenagers near to a lake within the grounds, prior to his death.
It is understood no members of the family were hurt in the incident.
Investigators are appealing for information from anybody who was in the area, including dog walkers, anglers and golfers, who witnessed the incident or saw two young people in the vicinity of the lake between 12pm and 7pm.
They are also keen to obtain video footage from any vehicles that travelled along Castle Road or Shoreham Road, and any cyclists or joggers in the area between these times.