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In page William Stubbs:

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By Stubbs' contemporaries and after his death Stubbs was considered to have been in the front rank of historical scholars both as an author and a critic, and as a master of every department of the historian's work, from the discovery of materials to the elaboration of well founded theories and literary production.[1] He was a good palaeographer, and excelled in textual criticism, in examination of authorship, and other such matters, while his vast erudition and retentive memory made him second to none in interpretation and exposition. His merits as an author are often judged solely by his Constitutional History.