The paper examines the process of Christian colonization on the Southern borderland of the Kingdom of Valencia in relation to the settlements of army officers of certain prestige from the last third of the thirteen century to the first third of the fourteen century. It also shows the extraordinary mobility of this feudal class and the fluid activation of the land market as a consequence of the exiguity of the plots of land originally distributed as well as the appearance of urban buyers that invest their capitals in agricultural renting at the end of the period.This work has been carried out as part of the research project “Redes Sociales y proyección económica en las sociedades de frontera: el sur del reino de Valencia entre los siglos XIII-XV” (HAR 2010-22090) funded by the Ministerio de Ciencia e Innovación and led by the author of this article
