It might be appropriate here to point out that the mosque was built on the site of a church destroyed by the Muslims when they invaded Spain, and that the lamps that were in the mosque (now the Cathedral) were made from the bells of the Cathedral at Santiago de Compostela, which the Christian prisoners were forced to carry from Compostela to Cordoba on their way to their life of slavery there after the Muslims overran Santiago. But we wouldn't want to destroy the peaceful Muslim fantasy, would we.
A building order than the present shrine was supposedly destroyed by the Moslems in 997, but within a short period Christian military (most likely Frankish knights under appropriate Cornish leadership) moved back into the region.
This area is at or North of the final d-mark of the Moslem venture into the peninsula.
The invasion began in 711 AD; the conquest happened quickly in a very underpopulated country; and was certainly well established for nearly 275 years before events in Compestala.
For comparison, 275 years ago it was 1731. Answers.com informs us that in that year "Trois-Rivières-born French fur trader Pierre Gaultier de Varennes, 46, sieur de la Vérendrye, begins expeditions into western Canada, looking for a great river that native tribesmen have told him might lead to the "western sea."
Thereby begins yet another story of high adventure with the American Revolution still 44 years in the future!
Thanks for "the rest of the story."