Upvote:1
As I understand it, you are a British citizen and for that reason an EU citizen. Your wife has a nationality which requires a visa to enter the Schengen area.
If you are planning to travel together, she can apply for a visa as a family member of an EU national. This visa has simplified documentation requirements; mostly she has to provide her family relationship.
See Travel documents for non-EU family members.
She can get this visa on arrival, but that is not advised because of the hassle and complications.