Sir Alexander Mackenzie, 4th of Davochmaluag - The real Alexander Mackenzie 4th of Davochmaluag

History of the Mackenzie's has the following

He was the son of Kenneth Mackenzie, third of Davochmaluag (who married a daughter of Ross of Balnagown)

Alexander Mackenzie, fourth of Davochmaluag, served heir to his father on the 30th of December, 1611. He married Margaret, daughter of Hector Munro of Fowlis, with issue —

Roderick, his heir and successor.
Colin, who married Mary, daughter of the Rev. Mr Mackenzie, minister of Sleat, with issue.
The eldest daughter married Robert Gray.
Another married Alexander MacRae of Inverinate.
A third married Murdo Matheson, of Balmacarra."

What about Alexander Mackenzie alleged son of Kenneth Mackenzie 4th Earl of Seaforth ?

Some Mackenzie Pedigrees attempts to correct the record and has Colonel Alexander Mackenzie (of Conansbay) as the son of Kenneth Mackenzie 3rd Earl of Seaforth and this Alexander married a Elizabeth Mackenzie. His daughter Isabel married a Basil Hamilton of Baldoon