user: Question: Who is the spouse of the queen who is the daughter of Ferdinand I of the Two Sicilies?
Columns: ['Name', 'Father', 'Birth', 'Marriage', 'Became Queen', 'Ceased to be Queen', 'Death', 'Spouse']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Maria Louisa of Spain', 'Charles III of Spain', '24 November 1745', '16 February 1764', '20 February 1790', '1 March 1792', '15 May 1792', 'Leopold II']
SQL:

assistant: SELECT "Spouse" FROM "Table" WHERE "Father" = 'Ferdinand I of the Two Sicilies';