Since the Uemura clan had performed great military exploits under Ieyasu during the Sengoku period, it was distinguished Fudai (a daimyo in hereditary vassal to the Tokugawa family) which was allowed to use 'Ie' of Ieyasu for the name of the successive lords of the domain.
なお、植村氏は戦国時代に家康のもとで抜群の戦功を挙げたことから、歴代藩主に家康の「家」を名乗ることを許されていた名門譜代であった。