Complex sentence: This title became extinct on his death in 1962, He was succeeded in the Irish titles by his third cousin once removed, the seventh Earl, who lived in Canada, as does his nephew, the eighth Earl, who succeeded him in 1991.
Split into simpler sentences: This title became extinct on his death in 1962 while he was succeeded in the Irish titles by his third cousin once removed, the seventh Earl. He lived in Canada, as does his nephew, the eighth Earl, who succeeded him in 1991.