What position did George Curzon, 1st Marquess Curzon of Kedleston, hold from December 16, 1916 until October 10, 1923?
SELECT ?obj WHERE { wd:Q271878 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1919')) }
george curzon, 1st marquess curzon of kedleston: Q271878