He sold the colonelcy to his brother - in - law , Lieutenant - General James Barry , 4th Earl of Barrymore , for 1,400 guineas .
In the following year , the colonelcy again changed , with Sir John Jacob choosing to retire .
John Jacob sold the colonelcy to John Jacob 's brother - in - law , Lieutenant - General James Barry , 4th Earl of Barrymore , for 1,400 guineas .
In the following year , the colonelcy again changed , with Sir John Jacob choosing to retire .