He was tried along with his father for high treason in March 1684 for being part of the rising at Bothwell Bridge.
A not proven verdict was returned but nevertheless he and his father were imprisoned on the Bass Rock on the Firth of Forth in Haddingtonshire.
[6][7] In 1685 George and his father were accused of accession to the Rye House Plot.
This was a plot for the assassination of Charles II and the elevation of his illegitimate son, by Lucy Walters, the Duke of Monmouth, to the throne.
Their lives were spared, but an act of attainder was taken out against them, by which their lands passed to the Crown and themselves again committed prisoners to the Bass.