Lǐ, written 李, is one of the most common surnames in Chinese, and borrowings of it are common family names in Japan and Korea as well. It dates back to the Tang Dynasty, being the surname of the Tang rulers. In Turkish the name means "water". As for "Sue", from Chinese 素 "plain", or else 肃 or 肅 which both mean "respectful". Sue could have been an English name her parents picked for her, instead; it means "graceful lily" in Hebrew.