 England won their first Grand Slam in 13 years after holding out to secure a historic victory in Paris.First-half tries from Danny Care and Dan Cole had given them a five-point half-time lead, only for the relentless penalty precision of Maxime Machenaud to keep France within touching distance.But a third try in three matches from Anthony Watson calmed rising nerves before a brace of late penalties from Owen Farrell allowed the travelling support to sing their heroes home.