Complex sentence: Righton began dating actress Keira Knightley in late February 2011, and the couple became engaged in May 2012 and were married at a low key ceremony in Mazan in the South of France on 4th May 2013.
Split into simpler sentences: Righton began dating actress Keira Knightley in late February 2011, and the couple became engaged in May 2012. They were married at a low key ceremony in Mazan in the South of France on 4 May 2013.