Wellhead load relief device

A wellhead load relief device for reducing riser system induced load effects on a subsea wellhead is provided. The wellhead load relief device comprises: a receptacle for receiving a well control equipment, wherein the receptacle has an open top to permit the well control equipment to be received in the receptacle; and an adjustable support mechanism for rigidly supporting a well control equipment received in the receptacle, wherein the adjustable support mechanism is located within the receptacie of the wellhead load relief device and wherein the adjustable support mechanism has a lateral extent that is adjustable relative to the receptacle, and wherein the wellhead load relief device is for providing a load path for forces exerted on the well control equipment to the seabed without going via the subsea wellhead. A subsea wellhead assembly comprising the wellhead load relief device is also provided. A method of installing a subsea wellhead assembly onto a subsea wellhead using a wellhead load relief device, a method of moving a well control equipment from a first wellhead to a second wellhead together with the wellhead load relief device, and a method of uninstalling a well control equipment with the wellhead load relief device in place are also provided.