This would involve a long minority for Johanna, and by reason of her marriage with Freskin de Moravia in 1245 or later, we suspect that Freskin's uncle, William _dominus Sutherlandiae_, whose territories were bounded on the north and east by her lands, was her guardian, an office whose duties the head of the powerful and loyal House of Sutherland alone could efficiently perform in the troublous and turbulent times of her minority.
From Bain's _Calendar of Documents_ relating to Scotland[25] we know that Freskin was one of the signatories of the National Bond of mutual alliance and friendship with Sir Llewelin son of Griffin, Prince of Wales, and other leading Welshmen on the 18th of March 1259. Freskin would not have been asked to sign a document of such international importance unless, like another of its signatories, Sir Reginald Chen I (whose son of the same name, Reginald Chen II, married Freskin's daughter, Mary of Duffus, later on) he had been one of the leading men of his time in Scotland. We also find that his rights were saved in a charter of 11th April 1260 and that on 13th October 1260 he was one of the three vice-gerents of Alexander Comyn, Earl of Buchan, Justiciar of Scotland, present in Court at Perth on that date.[26]
On the 16th March 1262-3 from a grant of two chaplains[27] for the weal of the soul of the deceased Freskin of Moray, Lord of Duffus, we know that he had died before that date, that is, probably before his fortieth year. Freskin, then, died after 13th October 1260 and before 16th March 1262-3, and was buried in the chapel of St. Lawrence in the Church of Duffus, which he had founded and endowed with lands at Dawey in Strath Spey, and Duffus. His wife Johanna ("quondam sponsa" "quondam Friskyni de Moravia") was certainly dead in May 1269 (Reg. Morav., ch. 126, p. 139).
They left no male heir, but they left two daughters, Mary and Christian, both minors at their father's death and probably too young to have been married in August 1263, when, as we shall find, their lands and their half share of the Caithness earldom sadly needed defenders from Norse invaders.
Owing to subsequent additions of territory, it is impossible at the present time to say exactly what all the lands owned by an independent title by Lady Johanna of Strathnaver were, but some guidance towards the further identification of her lands in Caithness is found in the fact that later charters give the names of the lands which her sequel in all her estate, Reginald Chen III, known as "Lord Schein" or "Morar na Shein" held,[28] and that he lived in and hunted from a castle at the exit of the river Thurso from Loch More above Dirlot or Dilred in Strathmore in Halkirk parish, but never owned Brawl, a capital residence of the Caithness earls, but did own to the end of his life "half Caithness," and acquired South Caithness after 1340 by purchase. Adding to this the facts, indications, and probabilities alluded to in this and preceding chapters as to the position of lands in Caithness variously owned, we are able to venture to come to a general conclusion as to the devolution of the Caithness earldom and lands.