He was the oldest son of Alexander Brodie (of Duneran 1691 and Lethen 1703), and his wife Sophia, a daughter of Sir Hugh Campbell of Calder.[2]
He succeeded to his father's estates in 1745.[3]
In 1754 he married Henrietta Grant, a daughter of the Colonel William Grant of Ballindalloch,[2] with whom he had two sons and three daughters.[3]