NET
21 But a suitable day came, when Herod gave a banquet on his birthday for his court officials, military commanders, and leaders of Galilee.
Darby
21 And a holiday being come, when Herod, on his birthday, made a supper to his grandees, and to the chiliarchs, and the chief [men] of Galilee;
KJV
21 And when a convenient day was come, that Herod on his birthday made a supper to his lords, high captains, and chief [estates] of Galilee;