Complex sentence: Sir Ralph Stafford or Ralph de Stafford (24 September 1301-31 August 1372, also Ralph de Stafford) was an English soldier and nobleman, and became a founding Knight of the Garter in 1348.
Split into simpler sentences: Sir Ralph Stafford or Ralph de Stafford (24 September 1301-31 August 1372, also Ralph de Stafford) was an English soldier and nobleman. He became a founding Knight of the Garter in 1348.