[3] The brigade was formed in an undisclosed location and the names of the commanding officers in charge of the instruction of the hastily gathered recruits are unknown.

Its mission was to attempt to establish a defensive line for which, together with the 242nd Mixed Brigade which was posted further downriver, it took positions along the middle course of the Tordera.

The aim was to halt the swift advance of the enemy, but at the end of the month the idea of a Line of Resistance was abandoned by the high command as unrealistic owing to the lack of battle-ready Republican units and the overwhelming pressure of the rebel forces.

But the march across the mountain range in the cold winter weather, and without proper food supplies and equipment, was an arduous task.

Once near Vic the brigade tried to halt the enemy advance against the town, but it had to withdraw in the face of the fierce rebel onslaught and quickly fell apart, the scattered remainders of the unit being unable to regroup.