A snowy family photograph offered a rare look at the relationship Arnold Schwarzenegger and Maria Shriver have built since ending their marriage. The former couple appeared together in a birthday tribute shared by their daughter, Katherine Schwarzenegger Pratt, as Arnold celebrated turning 79 on Thursday, July 30. Arnold Schwarzenegger and Maria Shriver Reunite in Family PhotoThe rare photograph showed Arnold and Shriver, 70, seated close together on a bench during a family ski vacation. Maria Shriver Has Spoken Honestly About Their DivorceGetty Arnold Schwarzenegger and wife Maria ShriverArnold and Shriver married in 1986 and separated in 2011 after the revelation that Arnold had fathered a son, Joseph Baena, with former household employee Mildred Baena. Arnold Schwarzenegger and Maria Shriver Put Family FirstGetty Arnold Schwarzenegger and Maria ShriverThe former spouses share four children: Katherine, Christina, Patrick and Christopher.