Gozenshu is sake (Japanese liquor) which was brewed and delivered to people such as seii taishogun (literally, "great general who subdues the barbarians") and daimyo (Japanese territorial lord) during the Edo period in Japan as a drink for so-called "tono-sama (a person with higher rank)".
御膳酒（ごぜんしゅ）とは、江戸時代の日本において征夷大将軍や大名など、いわゆる殿様の飲用として醸造・納品された日本酒をいう。