In the same work, p. 46, we find that the Earls of Ross were called
O'Beolans as late as 1333, for Sir Robert informs us, writing of
the battle of Halidon Hill, that "in this field was Hugh Beolan,
Earl of Ross, slain."

It is established to the satisfaction of all reasonable men that
the Applecross and O'Beolan Earls of Ross were one and the same,
and that they were descended from Gilleoin na h' Airde, corrupted
in the Norse Sagas into "Beolan," the general designation by which
they were known, until Earl William, the last of his line, died
without surviving male issue on the 9th of February, 1372, when the
title devolved upon his daughter, Euphemia, Countess of Ross in her
own right, whose daughter, Mary, or Margaret, by Sir Walter Leslie,
carried the earldom to Donald of Harlaw, second Lord of the Isles.
That the O'Beolan Earls of Ross, of whom Ferquhard Mac an t'Sagairt
was the first, descended from the same ancestor, Gilleoin na h' Airde,
as the older "Gillandres" earl of 1160, is equally certain. Earl
Gillandres as probably forfeited for the part he took against
Malcolm IV. on that occasion, and Ferquhard having rendered such
important services to Alexander II. was restored probably quite as
much in virtue of his ancient rights as the grandson of Ferquhard as
on account of his valiant conduct in support of the crown in Moray,
in Argyle, and in Galloway, in 1215, 1222, and 1235.

The surname Ross has in early times been invariably rendered in
Gaelic as Gilleanrias, or Gillanders, and the Rosses appear under
this appellation in all the early Acts of Parliament. There is
also an unvarying tradition that on the death of the last Earl of
the O'Beolan line a certain Paul Mac Tire was for some years head