Complex sentence: Thomas Southerne (1660--26 May 1746), Irish dramatist, was born at Oxmantown, near Dublin, in 1660, and entered Trinity College, Dublin in 1676.
Split into simpler sentences: Thomas Southerne (1660--26 May 1746) was an Irish dramatist. Southerne was born at Oxmantown, near Dublin, in 1660, and entered Trinity College, Dublin, in 1676.