Yes very nice photo. Apparently (as stated above) it came from Edinburgh Zoo in which case I saw it there. They had three different golden cat exhibits when I was there, which was fantastic. Now apparently there are none.
In accurate answer to the question, the only Tibetan Golden Cats in Europe are this male, a female sibling at Heidelberg and at least one other sibling at Parc des Felins. The nominate race of Asian Golden Cat is marginally more common, and is in 5 collections, including Heidelberg and PDF.
Given the fact this is one of the species I have a particular interest in, you really cannot make stuff up and expect not to be called out on it I repeat; a total of six collections hold the species with only three or four individuals of the Tibetan race, so neither the species as a whole nor the subspecies @TZDugong asked about are "rather common" in Europe.
To be precise:
Thrigby - 1,0 Tibetan
PDF - 0,0,1? Tibetan and 0,1 nominate
Heidelberg - 0,1 Tibetan and 1,0 nominate
Belfast - 1,0 nominate
Wuppertal - X, X nominate
Munster - 1,1 nominate