Luis Lopez-Fitzgerald was born in Harmony, New England, in the early or mid-1970s to Martin Fitzgerald, an Irish-American employee at Crane Industries, and Pilar Lopez-Fitzgerald, a Mexican immigrant and housekeeper at the Crane mansion. Luis was the second of five children born to the working-class couple — Antonio Brian Lopez-Fitzgerald is about one to three years his senior, while younger siblings Theresa, Miguel, and Paloma Lopez-Fitzgerald are all approximately a decade his junior. Though never wealthy, the Lopez-Fitzgerald brood were a loving, tight-knit family, contrasting the rich but cold Crane family. Pilar raised her children to be proud of their Hispanic heritage, instilling in them her devout Roman Catholic faith, cooking them traditional Mexican dishes, and teaching them Latin dances.