The Librea of Valle Guerra is one of the most important events in the festivities that honour the Virgen of El Rosario. It is held once a year on the Saturday nearest to 7 October, the day of El Rosario. The event comprises two acts: a parade of floats escorting the Virgin to the church square, and the re-enactment of the naval battle of Lepanto, which took place in 1751 between the vessels of the Turkish Empire and those of the Holy League. Where: Valle de Guerra. When: October.