The rivalry between the French and English factions in Scotland was complicated by private feuds of the Hamiltons and Douglases, the respective heads of which houses, Arran and Angus, were contending for the supreme power in the absence of Albany in France, where at the instance of Henry VIII.
This must be so, for Lennox's letters of the 11th of June were intercepted by his foes, the Hamiltons, and were found in the Hamilton Muniment Room.
Here Murray, with 4500 men, under leaders of high distinction, met the 6000 of the queen's army, whose ablest man, Herries, was as much distrusted by Mary as by every one else, while the Hamiltons could only be trusted to think of their own interests, and were suspected of treasonable designs on all who stood between their house and the monarchy.
The enemies of the Boyds instantly overthrew them, and the Hamiltons, a race of English origin, arose on their ruins to their perilous place of possible heirs to the crown.
The Hamiltons saw their Stuart enemies in power and favour.
As early as September 1565 gossips were busy over the indiscretion of Riccio's favour: Darnley had forfeited the good opinion of his wife; was angry because the Hamiltons were not wholly sacrificed to the ancient feud of Lennox and his clan; and Knox's party looked forward with horror to the parliament of March 1566, when Mary certainly meant " to do something tending to some good anent restoring the ancient religion."
The contending parties, queen's men and king's men, now made approaches to each other; neither had a share in the Hamiltons' crime.
This meant a war of Stuarts against Hamiltons, and, generally, of " Queen's men" against " King's men."
In May the Hamiltons entered Edinburgh, and later Lennox, in a parliament held at Leith, secured the forfeiture of Lethington.
Morton, with Angus, attacked the Hamiltons, whose chiefs fled the country, accompanied by the worst of traitors, Sir James Balfour.
The Hamiltons, now in English exile, were forfeited; d'Aubigny received the earldom of Lennox; and, as after Darnley's death, placards, were posted urging the trial of Morton for that crime.
At the end of 1585, all James's exiled foes, Douglases, Hamiltons and others, returned across the border in force, caught the king at Stirling, drove Arran into hiding, restored the Gowrie family, and became the new administration.
The comparative motion of two points at a given instant is capable of being completely expressed by one of Sir William Hamiltons Quaternions,the tensor expressing the velocity ratio, and the versor the directional relation.
It was forfeited by the O'Neills, and given to the Hamiltons and Montgomeries, from whom it passed to the marquess of Londonderry.