refers to Kagetsuna KATAKURA, Shigezane DATE, and Tsunamoto MONIWA, the three men of the meritorious retainers of Masamune DATE who made the greatest achievements.
伊達政宗の功臣のうち,特に功績の大きかった3人,片倉景綱・伊達成実・茂庭綱元を指す。