Having attained a position of influence, William Graham initiated a suit to try and reclaim the
earldom of Strathearn, comprising the lands of
Strathearn which encompassed all of
Menteith and other areas. This earldom had been lost by his ancestor
Malise Graham, 1st Earl of Menteith, in 1427. He proceeded on the idea that the earldom of Strathearn only followed along male lines of descent, and therefore reverted to him, and he was not hindered in his efforts. He was created
Earl of Strathearn in 1631, and took action to secure his authority over all of Strathearn.
Opposition Graham met with some opposition which dealt with his claims to the Earldom of Menteith and his bloodline. William Graham's opponents, who possessed some of the lands of Strathearn, showed great alarm at the fact that William Graham was to be the earl of their lands, and took it upon themselves to tell of William Graham's boasting of a bloodline more royal than the King,
Charles I. It is said that in front of witnesses he boasted that he had the reddest blood in Scotland and that the King was obliged to him for his crown, a charge which Earl William denied. The argument involving the royal bloodline involves an inheritance or relation to
David Stewart, Earl of Strathearn, the son of
King Robert II of Scotland, which was necessary to his legal claim for the Earldom of Strathearn.
Consequences Because the lineage of Robert II was of then a matter of some controversy, the patent was withdrawn in 1633 and he was created
Earl of Airth instead. He subsequently lost the favor of
Charles I.
Airth is a small location which is well south-west of Aberfoyle, and therefore it was a title of some negativity. He was ordered to confine himself to Airth for four years, until he was restored to favour in 1637 and served against the
Covenanters. In 1639, 1644, and 1645, and remaining staunch to the royal cause not withstanding the penalty imposed on him by Charles I, he served in the Parliaments, and in 1639 he was reappointed as a Privy Councillor, likely because of his refusal to take the covenants. ==Loss of position==