Following the Date clan's move into Sendai han, they were granted holdings at Shiroishi Castle (12,000 koku in total[1]), which they held through the start of the Meiji Era.
The clan came to prominence yet again in the Boshin War, when Shiroishi Castle was used as the headquarters of the Ouetsu Reppan Domei.
The castle was then given to the Nanbu clan of Morioka, before the domain system was finally ended in the early 1870s.
The current head of the family, Shigenobu (who would have been the 17th Kojūrō), is the chief priest of Aoba Shrine, in Sendai.
[3] In the Sony PlayStation Video Game Sengoku Basara and the anime adaptation of it he was depicted as Masamune Date's loyal right-hand and right-eye man.