Morthen is a hamlet in South Yorkshire in England, lying between Brampton-en-le-Morthen and Laughton-en-le-Morthen.

This had already ceased to function by the Norman Conquest, but gave its name to several villages in the area.

The assembly probably met in a meadow lying next to the ridge running between Upper Whiston and the hamlet of Morthen.

Given the proximity of a nearby stump of a Saxon cross, which is said by Guy Points in his "Yorkshire.

A Gazetteer of Anglo Saxon and Viking Sites" to commemorate the epic Battle of Brunanburgh in 937 would tie the cross and the name together.