The LOCATION@1 valley where Port wine is produced was defined and established as a protected region , or appellation in NUMBER@1 -- making it the third oldest defined and protected wine region in the world after PERSON@1 -LRB- NUMBER@2 -RRB- and LOCATION@2 -LRB- NUMBER@3 -RRB- .

The LOCATION@1 valley where Port wine is produced was defined and established as a protected region , or appellation in NUMBER@1 .
