First Marquess Cornwallis vs Cornwallis

First Marquess Cornwallis and Cornwallis both are nouns.

Word	Noun	Adjective	Verb	Adverb
First Marquess Cornwallis	Yes	No	No	No
Cornwallis	Yes	No	No	No

As nouns, First Marquess Cornwallis and Cornwallis are synonyms defined as:

First Marquess Cornwallis and Cornwallis: commander of the British forces in the American War of Independence; was defeated by American and French troops at Yorktown (1738-1805)

Other synonyms of First Marquess Cornwallis include Charles Cornwallis.

First Marquess Cornwallis (noun)	Cornwallis (noun)
commander of the British forces in the American War of Independence; was defeated by American and French troops at Yorktown (1738-1805)	commander of the British forces in the American War of Independence; was defeated by American and French troops at Yorktown (1738-1805)