Conversation so far:
Was Isidore of Seville Venerated?
Isidore of Seville was interred in Seville. His tomb represented an important place of veneration for the Mozarabs during the centuries after the Arab conquest of Visigothic Hispania.
Who were the Mozarabs?
The Mozarabs are, in modern historical terms, the Iberian Christians who lived under Moorish rule in Al-Andalus.
In what forms did Isidore of Seville Veneration take place?

Question: What was the length of this Veneration?
Self-contained rewrite: What was the length of Isadore of Seville's Veneration?