Protocol Books provided formal records of all sorts of legal work - property deals, council business, family disputes and many more. This one would be important for Stirling even if it were not the oldest surviving of all Protocol Books -which makes it important for Scotland, too. I have consulted the abstacts from time to time when researching that period and (much less often) have consulted the original in the National Archives of Scotland, where it has bene held for many years.
Now it has been 'repatriated' to Stirling Council Archives, where it can be consulted FOR FREE (reference B66/1/1/1). It is not easy stuff, Latin mainly and in difficult 15th century script though the difficulties will be somewhat reduced as there is now a digital copy which will allow magnification - and reduce the need to handle this treasure. It is very good that we have it back.
For Stirling Council Archives see our Links page or firstname.lastname@example.org