What is accepted to be California's first official wine-producing vineyard?
Mission San Juan Capistrano is recognized as the location of California's first wine vineyard,  which was planted by Father Junípero Serra.
Instruction: What is accepted to be California's first official wine-producing vineyard?
Context: 
Response: Mission San Juan Capistrano is recognized as the location of California's first wine vineyard,  which was planted by Father Junípero Serra.