At the time of the Domesday survey in 1086, Agbrigg and Morley were separate wapentakes. For example, Methley was in Agbrigg while Rothwell was in Morley.
The passage describes how during the Domesday Survey in 1086, the areas of Agbrigg and Morley were separate entities within a larger administrative unit.  Methley was situated within Agbrigg while Rothwell belonged to Morley.