Zara Tindall has been pictured for the first time since Princess Anne suffered head injuries, as the 43-year-old made a hospital visit today. The mother-of-three wore a casual double denim outfit as she arrived at Southmead Hospital to visit her mother, the Princess Royal. Zara, who is married to rugby legend Mike Tindall, did not speak to anyone as she arrived to visit her mother. Princess Anne was hospitalised on Sunday evening after suffering a concussion from a blow to the head by a horse. On Monday, a Buckingham Palace spokesperson said: “The Princess Royal has sustained minor injuries an…