Later, two years after Sekigahara, when Masamune was made lord of Sendai, Kagetsuna was granted Shiroishi Castle (白石城 "Shiroishi-jō"), and a stipend of 13,000 "koku". This was a special exception to the Tokugawa Shogunate's newly passed "ikkoku ichijō" (一国一城; "One Castle per Territory") rule. The Katakura clan, as senior retainers of the Sendai domain, would remain in Shiroishi as local lords for the next two centuries, spanning over 11 generations.