1/4 Arnold sent out a special birthday message to his daughter Katherine. Photo: Instagram/@schwarzenegger 2/4 Katherine's parents Maria and Arnold reunited to celebrate her 27th birthday. Photo: Instagram/@katherineschwarzenegger 3/4 Arnold and Maria reunited in May to celebrate their son Patrick's graduation. Photo: Instagram/@schwarzenegger 4/4 Maria and Arnold have four children together. Photo: David Paul Morris/Getty Images © ¡HOLA! Prohibida la reproducción total o parcial de este reportaje y sus fotografías, aun citando su procedencia. Más sobre: Celebrity Parents Arnold Schwarzenegger Maria Shriver Más noticias sobre Celebrity Parents El hijo de Justin Timberlake, Silas, hace una rara aparición en el PGA golf tour Serena Williams reveals her mom’s amazing parenting advice Roselyn Sánchez and husband Eric Winter's little girl has some big news to share Alex Rodriguez celebrates daughter Ella’s 9th birthday with amazing pool party