Luis’ paternal family was related to
Old Castile; one of his ancestors gained recognition as member of the
Cura Merino unit, fighting the French during the
War of Independence; he served under the same commander also during the
First Carlist War. Later on the family found itself on the descendant path and Luis’ grandparents were referred to as "laboradores modestos". His father,
Mariano Hernando Ruiz (1861-1913), originated from
Riaza in the
province of Segovia; he studied medicine but upon graduating has never practiced; instead, he made a living by trading arts, mostly paintings and sculptures. Heavily engaged in preparing the Spanish pavilion for the
Paris Exposition Universelle of 1889, apart from presenting art he also co-ordinated works related to construction of a bullring in the
Trocadero park. He has never made it to the affluent bourgeoisie strata and back in
Madrid suffered financial problems, living first at
Calle Ancha de San Bernardo and then at Calle Lista. Mariano Hernando married Maria Cuadrado, with whom he had 3 children. Upon her premature death he remarried with Luisa Larramendi Serrano, also a madrileña though of
Alavese origins. The couple had 6 children, Luis born as the oldest of the siblings and the only son. The young Luis was first educated at the Madrid
Instituto de San Isídro, a prestigious
Jesuit establishment with long distinguished record; it is there where he got his
baccalaureate and where he made acquaintances, some of them later public figures like Luis Urquijo, marqués de Amurrio. However, it is also at the college where despite his penchant for letters he ran into problems with the teacher of Retórica y Poética, resulting in Luis’ later lukewarm attitude towards the Jesuits and formal education. At unspecified date he entered Facultad de Derecho at
Universidad de Madrid; not averse towards bohemian lifestyle, he befriended the likes of
Alejandro Sawa and
Ramón Valle Inclán. Date of graduation is not known, apart that it was prior to 1905; at that time he was already practicing law as an intern, to open his own law office later on. In honor of his maternal family Luis got his name changed from Hernando y Larramendi to Hernando de Larramendi y Ruiz. During his academic years Larramendi met a sister of his university colleague Mariano de Montiano, María de Montiano y Uriarte (1886-1976), originating from
Bilbao. Daughter of a physician, descendant to a noble prestigious family and considered the most handsome girl in the city, she was also fanatically
Basque. They married at unspecified time, though prior to 1904; he tended to be quiet and unassuming, she was also introvert, but of a decisive and bold character. The couple settled at Calle Valázquez; they had 9 children, 6 boys and 3 girls. The oldest son,
Ignacio Hernando de Larramendi, became known nationwide as longtime manager and the moving spirit behind
MAPFRE, a corporate insurance giant; other children did not grow to prominence nationwide. Luis' grandson, Luis Hernando de Larramendi y Martínez, took part in numerous Carlist activities of the early 21st century. ==Early public career (prior to 1912)==