Donald MacNaughton, Dean of Dunkeld & Dunblane

From https://en.m.wikipedia.org/wiki/Domhnall_MacNeachdainn

Domhnall MacNeachdainn was a 15th-century Dean and Bishop of Dunkeld. He was the nephew of Robert de Cardeny, Bishop of Dunkeld, by Robert's sister, Mairead (Mariota). The latter was also the mistress of King Robert II of Scotland. His father was probably a chief of the MacNeachdainn (MacNaughton) kindred.

References

• Dowden, John, The Bishops of Scotland, ed. J. Maitland Thomson, (Glasgow, 1912)