Clan Robertson of Strowan (Struan) in Perthshire, Scotland, Chief of the Clan Robertson or more properly Clan Donnochie or Donnachaidh; descended from Crinan, Lord of Atholl and hereditary lay Abbot of Dunkeld who by Bethoc, heiress of Scone, was father of Duncan I, King of Scots, whose third son, Melmare, was ancestor of the Earls of Atholl. The first chief of the clan was Duncan after whom Clan Donnachaidh is named. Having with great courage and intrepidity apprehended the murderers of James I. of Scotland, James II. granted to his family for crest, the hand supporting the regal crown, and for motto, “Virtutis gloria merces.” The man in chains, lying under the escutcheon of the arms, was also adoped in commemoration of this event.
Arms: Gules, three wolves’ heads erased argent.
Crest: A dexter hand erect, holding an imperial crown all proper.
Motto: Virtutis gloria merces (Glory is the reward of valour)