In 1796 he married Frances Duncombe, daughter of
Thomas Duncombe of
Duncombe Park, Yorkshire. She was one of the wealthiest young women in the country. They had four children together: •
Major George Pitt Rose (1797–1851), married Phoebe Susanna Vesey, daughter of Major-Gen. John Agmondisham Vesey. • Frances Theodora Rose (1798–1879), married
George Douglas, 17th Earl of Morton. • Charles Philip Rose (1799–1835), died unmarried. •
Field Marshal Hugh Rose, 1st Baron Strathnairn (1801–1885), died unmarried. •
Sir William Rose (1808–1885), married Hon. Sophia Maria Andalusia Thellusson, daughter of
John Thellusson, 2nd Baron Rendlesham. • Arthur Robert Rose (1811–1869) ==References==