Where was the Barberini psalter created?

Question

Would you know where the Barberini psalter was created?

I have checked the on-line sources and cannot find the answer (maybe I have overlooked it?)

It was created in the 11th century. The obvious answer would be "Florence, because Barberinis lived in Florence in the 11th century", but I am not sure because the objects can be named after their later owners, not after those who have commissioned them.

Answer 1

Yes. I know. It was not created in Florence but in the Monastery of Saint John the Forerunner "at Stoudios".