_Luis V. Costa Lacroix _____________________+ | (1888 - 1948) m 1915 _Enrique Ricardo Costa Sáenz ___| | (1919 - 2006) m 1954 | | |_Marina C. Saénz del Carpio ________________ | m 1915 _Eduardo Luis Esteban Costa Bidegaray _| | (1958 - ....) | | | _Pedro Bidegaray Magot _____________________ | | | | |_Rosa Bidegaray Ferrand ________| | (.... - 1984) m 1954 | | |_Alicia Ferrand Salomone ___________________+ | | |--Ernesto Felipe Costa Ludowieg | (2005 - ....) | _José Carlos Christian Ludowieg Cantuarias _+ | | (1886 - 1980) m 1924 | _José Ludowieg Echecopar _______| | | m 1959 | | | |_Isabel Germana Echecopar García ___________+ | | (1900 - 1979) m 1924 |_Rosa María Ludowieg Alvarez Calderón _| (1962 - ....) | | _José Alvarez Calderón Pró _________________+ | | (1912 - ....) m 1937 |_Rosa Alvarez Calderón Barreda _| (.... - 2008) m 1959 | |_Rosa Barreda Olavegoya ____________________+ m 1937