First Baron Macaulay vs Lord Macaulay

First Baron Macaulay and Lord Macaulay both are nouns.

Word	Noun	Adjective	Verb	Adverb
First Baron Macaulay	Yes	No	No	No
Lord Macaulay	Yes	No	No	No

As nouns, First Baron Macaulay and Lord Macaulay are synonyms defined as:

First Baron Macaulay and Lord Macaulay: English historian noted for his history of England (1800-1859)

Other synonyms of First Baron Macaulay include Macaulay, Thomas Babington Macaulay.

First Baron Macaulay (noun)	Lord Macaulay (noun)
English historian noted for his history of England (1800-1859)	English historian noted for his history of England (1800-1859)