I'm glad they decided to make it a 1883 'modern art' building than going medieval retro like on that draft. I just checked online it has a two of Franco's family members buried inside, his wife's Duchess of Franco title was removed recently by King Felipe:
Notable burials
Almudena Cathedral - Wikipedia
People buried at Almudena Cathedral include:
Her Majesty Mercedes of Orléans, Queen of Spain (1860–1878)
His Highness Prince Ferdinand of Bavaria (1884–1958)
His Highness Jose Eugenio, Prince of Bavaria (1909–1966)
His Highness Luis Alfonso, Prince of Bavaria (1906–1983)
Her Highness Doña María de la Asunción Solange de Mesía y de Lesseps, Princess of Bavaria and Countess of Odiel (1911–2005)
Carmen Franco, 1st Duchess of Franco (1926–2017)
Cristóbal Martínez-Bordiú,10th Marquess of Villaverde (1922–1998)
Francisco de Cubas, I Marquess of Cubas (1826–1899)
Francisco de Cubas y Erice, II Marquess of Cubas, II Marquess of Fontalba and Grandee of Spain (1868–1937)
Estanislao de Urquijo y Landaluce, I Marquess of Urquijo (1817–1889)
Estanislao de Urquijo y Ussía, III Marquess of Urquijo (1872–1948)
Isabel de Maltrana y de Novales, I Marquise de Maltrana (d. 1919)
Luis de Pedroso y Madan, V Count of San Esteban de Cañongo (1876–1952)
María Dolores de Pedroso y Sturdza, VI Countess of San Esteban de Cañongo
Margarita de Pedroso y Sturdza, VII Countess of San Esteban de Cañongo (1911–1989)
Cardinal Ángel Suquía Goicoechea (1916–2006)
Fernando Rielo Pardal (1923–2004)
Alfonso Peña Boeuf (1888–1966)
Enrique María Repullés (1845–1922)