Pronunciation: (lanz'doun),[key] —n. 1. Henry Charles Keith Pet•ty-Fitz•mau•rice, Pronunciation: (pet'ē-fits-môr'is, -mor'-),[key]5th Marquis of, 1845–1927, British statesman: viceroy of India 1888–94, foreign secretary 1900–05.
2. William Petty Fitz•mau•rice Pronunciation: (fits-môr'is, -mor'-),[key]2nd Earl of Shelburne, 1st Marquis of, 1737–1805, British statesman: prime minister 1782–83.
3. a city in SE Pennsylvania. 11,891.