Bayona de Tajuña is renamed Titulcia Historical milestone · Titulcia, Las Vegas, Madrid Image of Titulcia, not of the place itself. Ferdinand VII ordered the village's name changed in 1814 so as not to recall his French captivity in Bayonne. The name chosen was that of the Roman Titulcia of the Antonine Itinerary, then believed to have stood at this point of the valley. 1814 Photo: Allpe (CC BY 3.0) What to see and do in Titulcia