 On 3October 1521 the Castilians capitulated in exchange for free passage to Castile.The troops of Guillaume Gouffier then headed to Labourd and on to Behobia, capturing the fortress of Urantzu and moving on to invest the coastal stronghold of Hondarribia (Fuenterrabía, Fontarabie) at the tip of Gipuzkoa in the Basque Country.This stronghold was captured on 12October 1521 (other sources state 6October).