Wayside Inn Licence What Does "old Sir William And Sir Hugh" In The Prologue Of The Wayside Inn Tales Refer To?

What does "old Sir William and Sir Hugh" in the prologue of the Wayside Inn Tales refer to? - wayside inn licence

"A judge that he
Sadbury known to all as the owner.
She was his name and racial pride
Of old Sir William and Sir Hugh. "

This is an excerpt from the preface to the Wayside Inn valley. What Sir William, Sir Hugh affected?