Dorothy Dunnett's Richard III

I am one of the world's many great DD fans, particularly
the "Lymond" series. However, she introduces Richard III on his
Scottish campaign in Gemini, the last volume of the Niccolo series.
She presented a military, able but not particularly sympathetic
Richard. Anyone else read this and noted his brief appearance? I
suppose it made a refreshing change from what are sometimes rather
cloying Richards produced by overly fanatical supporters. (Having
said that, I still adore Patrick Carleton's Richard in "Under the
Hog").