Holt is a medieval village and community in Wrexham County Borough, Wales. It is situated on the border with England and in the historic county of Denbighshire. Holt Castle was begun by Edward I shortly after the English conquest of Wales in 1277. Farndon lies just over the River Dee.

A grenade is an explosive weapon typically thrown by hand, but can also refer to a shell shot from the muzzle of a rifle or a grenade launcher. A modern hand grenade generally consists of an explosive charge ("filler"), a detonator mechanism, an internal striker to trigger the detonator, an arming safety secured by a transport safety. The user removes the transport safety before throwing, and once the grenade leaves the hand the arming safety gets released, allowing the striker to trigger a primer that ignites a fuze, which burns down to the detonator and explodes the main charge.