Lord Ross
In 1815 their son George Boyle , 4th Earl of Glasgow was created Baron Ross , of Hawkhead , in the Peerage of the United Kingdom , which title became extinct in 1890 on the death of his son George Boyle , 6th Earl of Glasgow . 
<triplet> George Boyle, 6th Earl of Glasgow <subj> George Boyle, 4th Earl of Glasgow <obj> father