His wife , Sophia Jane , Lady Sadler , died on 12 February 1902 , and is buried next to him .
Sadler died in 1910 , and is buried in Brompton Cemetery , London .
Sadler 's wife , Sophia Jane , Lady Sadler , died on 12 February 1902 , and is buried next to him .
Sadler died in 1910 , and is buried in Brompton Cemetery , London .