Complex sentence: These developments were offset by the acquisition of the Norse-Gaelic west, and the Gaelicisation of many of the noble families of French and Anglo-French origin and national cohesion was fostered with the creation of various unique religious and cultural practices.
Split into simpler sentences: These developments were offset by the acquisition of the Norse-Gaelic west and the Gaelicisation of many of the noble families of French and Anglo-French origin. National cohesion was fostered with the creation of various unique religious and cultural practices.