Soldier and colonial governor. Grant had a distinguished military career having joined the Royal Scots in 1744. He became the first governor of British East Florida (1763-73) and did much to develop that colony following its acquisition from Spain after the Seven Years' War (1763).
He controversially suggested to Parliament that he could control the American colonies, and in 1775 sailed for Boston to take a leading role in the American Wars of Independence (1775-83). Grant proved an effective soldier and, had his advice been taken by his less-effectual commander, General Sir William Howe, the outcome may have been rather different.
He retired to Ballindalloch Castle, his family seat in Moray, where he enjoyed good food and was noted for his hospitality.