While protected Defending by the Liberal fleet , the division of Lieutenant-Colonel John Schwalbach crossed Motion_directional the river and occupied Control the Serra do Pilar , in Gaia , forcing Control the Royalists to withdraw Escaping in disorder to Oliveira de Azeméis .

They decided Deciding on General Manuel de Oliveira Gomes da Costa , who agreed Agree_or_refuse_to_act to join Becoming_a_member the plotters on 25 May .