Sir Archibald Roylance was a fictional character created by John Buchan.
Apart from Dougal and Jaikie of the Gorbals Diehards he is younger by a dozen years or more than all Buchan's paladins, a d'Artagnan among the Musketeers, and mostly they deal with him in avuncular fashion, but, ignored, mocked, overruled, he has their respect as well as their affection.
Buchan seems determined not to lose sight of Archie Roylance and returns to him repeatedly, dropping stitches which he will later pick up, so that he appears a character recollected rather than invented.
[1]In John Macnab Archie meets, falls in love with and proposes to Janet.
He is running for the local seat as a Conservative MP and gets a great deal of inspiration from Janet for his political views.