The citizens of Pamplona participate in the encierro, or running of the bulls, primarily in honor of San Fermín, who is the patron saint of the city. The tradition is part of the San Fermín Festival, which includes various events and celebrations in his honor. The legend states that San Fermín was martyred, and although the bulls are not specifically tied to his martyrdom, they have become central to the festivities. Therefore, the most accurate choice is:
in honor of San Fermín, who was martyred when bulls dragged him through the streets.