Answer:The ease with which he had subdued the realm misled him; he fancied that the slack resistance, which was mainly due to the incapacity and unpopularity of Baliol, implied the indifference of the Scots to the idea ol annexation.
Answer:
The meaning of faniced means that it's believed to be true or imagined. It's like when we daydream when were bored.
For example: I can't remember any memo of mine at all, but I have the distinct impression that almost all of them were written in anger over real or fancied wrongs.
(Hope this helps) Sky