Who married Princess Maria Amalia of Bourbon-Two Sicilies (1818–1857)?

Princess Maria Amalia of Bourbon-Two Sicilies (Italian: Maria Amalia di Borbone, Principessa di Borbone delle Due Sicilie; 25 February 1818 in Pozzuoli, Two Sicilies – 6 November 1857 in Madrid, Spain) was a Princess of Bourbon-Two Sicilies by birth and an Infanta of Portugal and Spain through her marriage to Infante Sebastian of Portugal and Spain.

Dom Sebastião Gabriel de Borbón y Braganza, (Rio de Janeiro, 4 November 1811 – Pau, 14 February 1875) Infante of Portugal and Spain, was an Iberian prince of the 19th century, progenitor of the Spanish ducal lines of Hernani, Ansola, Dúrcal and Marchena, and Carlist army commander in the First Carlist War.