MacGregor's Gathering: MacGregor Trilogy 1

At the beginning of the eighteenth century, one of the most exciting and
romantic periods of British history, the famous Rob Roy MacGregor and
his gallant nephew Gregor, a fierce young highlander loyal to the cause,
led the MacGregor clan into battle against the English Army.

Outlawed and landless, they still clung to Glengyle, one small remaining
corner of their ancient territories, and held fast in their loyalty to
the Stuart King over the water.

But in the midst of the political struggle young Gregor still managed to
find time to pay court to Mary Hamilton, a lovely girl who at first
rejected his rough Highland ways...

The beginning of the heroic story of Rob Roy MacGregor, as told by Nigel
Tranter, master of Scottish historical fiction.