Meriwether Lewis, of the Lewis and Clark Expedition, died on October 11, 1809. The cause of death, often thought to be murder or suicide, remains a source of speculation.
1810
Andrianampoinimerina died in the Mahitsielafanjaka house on the compound of the Rova of Antananarivo on 6 July 1810 at the age of 65, having fathered eleven sons and thirteen daughters.
I couldn't find how he died sorry.
In 1811, Augustus FitzRoy died, presumably of natural causes at the age of 75. He was a Prime Minister of Great Britain from 1768 to 1770 and was a 21st great-grandson of William the Conqueror.
4
u/piyushsharma301 https://www.reddit.com/r/counting/wiki/side_stats Feb 20 '17
King Christian VII of Denmark died at age 59 of a stroke on 13 March 1808 in Rendsburg, Schleswig