Complex sentence: Theobald Mathew (1790-1856), Irish temperance reformer, popularly known as Father Mathew, was descended from a branch of the Llandaff family, and was born at Thomas-town, Tipperary, on October 10 1790.
Split into simpler sentences: Theobald Mathew (1790-1856) was an Irish temperance reformer, popularly known as Father Mathew. He was descended from a branch of the Llandaff family, and was born at Thomas-town, Tipperary, on October 10 1790.