Belvedere Vodka is a Polish vodka named after Belweder, the Polish presidential palace, which appears on its label. It has become something of a household name in the United States in the last decade or so, especially after appearing in the 2015 James Bond movie Spectre, further cementing its place in contemporary pop culture.
According to the distillers, Belvedere Vodka is a 100% rye-based spirit, but in 2014 they faced some controversy when an independent testing organization found evidence of sugar cane and corn in the finished product. Since rye is a relatively difficult grain to ferment and distill, many producers blend it with other grains—however, dishonest labeling is frowned upon in the industry and is, in most cases, illegal. Belvedere also ended up in some (well-deserved) hot water in 2012 after running an ad that pretty blatantly promoted sexual assault, so it's safe to say that their brand hasn't always been a paragon of corporate ethics. Nonetheless, Belvedere Vodka remains a popular brand the world over.