Thomas Gray 
Scalacronica [PDF ebook] 
The Reigns of Edward I, Edward II and Edward III

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Gray, with his son, also called Thomas, was taken prisoner, and, being unable to raise the ransom demanded, lay for two years a captive in Edinburgh Castle. Luckily for him, and for us, he had the run of the library there, which was better furnished than might have been expected. He found such good and suggestive material therein that he undertook to compile a history of Britain, an enterprise which very few knights in that illiterate age were competent to attempt. He offered in his prologue the usual apology of an inexperienced writer.