Mark 14:53

And they led Jesus away to the high priest
Caiaphas, as is added in the Syriac, Arabic, and Persic versions. This was done, after they had took Jesus and bound, him, and after they had had him to Annas, who sent him bound to Caiaphas; see ( John 18:12 John 18:13 John 18:24 ) ;

and with him,
the high priest Caiaphas,

were assembled all the chief priests, and the elders, and the
Scribes;
even the whole sanhedrim, who met at Caiaphas's house, and were waiting there for Jesus; whom Judas with his band of soldiers and others, were gone to secure, and brng before them; (See Gill on Matthew 26:57).