Date Junnosuke (伊達 順之助; DAH-tay; January 6, 1892 – September 9, 1948) (Chinese: 伊達順之助; pinyin: Yīdá Shùnzhīzhù), also known by his adopted Chinese name Zhang Zongyuan (Chinese: 張宗援; pinyin: Zhāng Zōngyuán; Wade–Giles: Chang1 Tsung1-yüan2), was a Japanese mounted bandit and continental rōnin active in early 20th century China. He was a part of the Manchu-Mongol Independence Movement and the Shandong Autonomy Movement. He was a descendant of Date Masamune and a member of the Date clan.
Source: “Date Junnosuke”, English Wikipedia (CC BY-SA 4.0), excerpt