We can go back to the year 1902 where was specified the Rioja denomination in the Charter of Miranda:" Everyman of Logroņo, Najera or Rioja land who want to pass goods to Alava
". So Rioja denomination is related to Oja River as a differentiated local region.
Soon Haro was established as population head of this region, as it seems to define the jarrero concept, like native of Haro, which can be related to oja-ojarra-jarrero.
The efforts for promoting Rioja wine, which have been done from Haro, started a long time ago. As well as champagne had its clergyman Don Perignon, and Bordeaux had its abbot Rozier in our wine was significant another clergyrman, Quintano, de La Bastida. But what it has characterized Haro as Rioja capital are natural conditions, whose first expression is its wines and men who are oriented to a total enological operation, producing grapes, making wine, maturing and bottling.