Indeed - there are a couple of good diagrams that attempt to illustrate what each term encompasses, e.g.: https://upload.wikimedia.org/wikipedia/commons/5/55/British_...
King James then began to try to create a unified state, merging first the churches. Of course there was then that little Cromwell bustup, but after that James VII of Scotland was on the throne and causing religious grief, his daughter and her Dutch husband then took over.
[0] https://en.wikipedia.org/wiki/Laws_in_Wales_Acts_1535_and_15...