Tsi

Tsi was the ronin apprentice of a Crane swordsmith during the rule of Emperor Hantei XXX. When the Emperor commissioned a sword for his son the Crane allowed Tsi to create the saya for the blade. The Emperor was so taken with the beauty of their work that the Crane was made the personal smith of the Emperor and Tsi was given the right to a family name. (3E p. 76)