This glass was most likely part of a large service commissioned on the occasion of the marriage between Prince General Semyon Mikhailovich Vorontsov (1823-1882) and Maria Vasilyevna Stolypina, née Princess Trubetskaya (1819-1895).
Along the edge, the mottos: SEMPER IMMOTA FIDES - IN DEO SPES MEA
From this service we have another 8 stemmed glasses, identical to the one on sale here, and 5 liqueur glasses.
More details in the photos can be seen by linking to: https://www.dropbox.com/scl/fo/7rg9qctmyo2lgsebfynaj/AMdjWfKIJX2GWmGqphFkZnY?rlkey=s4pluw7hu9b1wy0icnbu7iuhl&st=df9bpeup&dl=0