What does this mean?

[Bert45]

Cloister with prune in Santa Maria la Real monastery, Najera, La Rioja, Spain.​

There are several images under this heading here: https://www.alamy.com/cloister-with...ery-najera-la-rioja-spain-image425869403.html
I'm guessing that 'prune' has been translated from the Spanish, but what word in Spanish? The first image is of the cloister with a well (pozo) in the foreground. Can pozo mean prune?
Thanks.

 

[C clearly]

Well, it does say that captions are provided by the contributors. Maybe you could compare all the photos under that heading to see what the common features are. Are you thinking of buying the photo, or are you just looking for puzzles?