, Northumberland married Louisa, daughter of
Henry Drummond, in 1845. She died in December 1890. Northumberland survived her by nine years and died in January 1899, aged 88. The Duke and his wife were buried in the
Percy family vault in
Westminster Abbey. He was succeeded in the dukedom by his eldest son,
Henry, Earl Percy. Northumberland's second son
Lord Algernon Percy was also a politician. At the Percy seat
Alnwick Castle, Northumberland, he enlisted
Anthony Salvin to do considerable interior works in the
neo-Gothic style, and purchased the collection of paintings amassed by the Roman painter
Vincenzo Camuccini, to add to the pictures at Alnwick, swelled by the collection formerly at
Northumberland House, The Strand, London, which was demolished in 1874. ==References==