Complex sentence: Son of Prince Adam Jerzy Czartoryski and Princess Anna Zofia Sapieha, he married Marie Amparo Countess of Vista Alegre, daughter of Queen Cristina of Spain by morganatic relation to the Duke of Riancares, on March 1,1855 in Malmaison near Paris.
Split into simpler sentences: Son of Prince Adam Jerzy Czartoryski and Princess Anna Zofia Sapieha. He married Marie Amparo Countess of Vista Alegre, daughter of Queen Cristina of Spain, by morganatic relation to the Duke of Riancares on March 1,1855 in Malmaison near Paris.