Tymahn Qwentyn was a Siddarmarkian citizen and banker.

Born in the Year of God 821, he served as leader of the House of Qwentyn, one of the Republic's predominant banking and investment cartels, seven decades later. Lord Protector Greyghor held a seat on the House's board of directors, and the cartel operated the royal mint in the capital city of Siddar (BSRA, BHD)

He was able to find loop-holes within the Church of God Awaiting's directive on the Charisian embargo that were profitable to both himself and his associates. (BHD)

His grandson, Owain, also worked for his bank. (HFAF)