during the early 1900s, villa arbelaiz became a centre of social life, notorious for welcoming notable personalities associated with the legitimist movement as well as close friends and relatives of the olazábal family. among its regular guests was don jaime de borbón, who stayed there several times for more than a decade. other distinguished guests included the former queen natalie of serbia, princes and princesses of bourbon-parma, lord ashburnham, italian aristocrats like the counts zileri dal verme and emo capodilista, the duchess of cadaval, the counts o'byrne of corville and several legitimist politicians.