The orangery originated from the Renaissance gardens of Italy, when glass-making technology enabled sufficient expanses of clear glass to be produced. In the north, the Dutch led the way in developing expanses of window glass in orangeries, though the engravings illustrating Dutch manuals showed solid roofs, whether beamed or vaulted, and in providing stove heat rather than open fires. This soon created a situation where orangeries became symbols of status among the wealthy.In England, John Parkinson introduced the orangery to the readers of his Paradisus in Sole (1628), under the heading 'Oranges'. The building of orangeries became most widely fashionable after 1648. The countries that started this trend were France, Germany, and the Netherlands, whose merchants begin importing large numbers of orange trees, banana plants, and pomegranates to cultivate for their beauty and scent. This orangerie was made in the so-called stables at Villa Pisani. I don't know whether they ever hosted horses, because it looks they were converted into an orangerie soo. On the walls stalks of maize and birds are fresced. Maize was first cultuvated in Veneto in mid-16th century, and by the 17th century it had become a staple in the regional diet. To see the stables and the palace you can go to Flavia49's gallery (The Palace 1-2) Thank you for your kind comments.