缪贤 / Miu Xian
缪贤 / Miu Xian appears in 《资治通鉴·周纪》74丨还原完璧归赵真相！ as the Zhao palace insider who first buys 和氏璧 for five hundred gold. The episode says 赵惠文王赵何 repeatedly hints that Miu Xian should offer the jade, and then sends troops to seize it when Miu Xian refuses.
His page is source-scoped. Miu Xian’s role is to show that the jade becomes politically dangerous even before 秦昭襄王 asks for it: a court possession can become a royal object once the ruler’s desire and coercive power are engaged.