This Nicholas Brown was the third in the family to bear that name. He was the son of Nicholas Brown, Jr., Brown University's famous benefactor (after whom the university is named). Born in 1792, he graduated from Brown in 1811, and went on to a career in politics. President James Polk appointed him United States Consul to Italy, where he spent nine years (1845-1853). In 1856, he was elected to the position of Lieutenant Governor of Rhode Island. He died in Troy, New York, in 1859. While in Providence, Nicholas Brown lived in the double brick house (called Horace Mann Hall) at George and Prospect Streets, now a part of the Brown University Campus.
Nicholas Brown is also notable as the father of Annmary Brown Hawkins, in whose memory General Rush Christopher Hawkins erected the building which bears her name, and as the father of Carrie Mathilde Brown Bajnotti, whose similarly grieving husband endowed the construction of Carrie Tower on the Brown University Campus and the Carrie Foundation in downtown Providence.
. Nicholas Brown I [1729-1791] &
. Rhoda Jenckes [1741-1783]
. Nicholas Brown II [1769-1841]
. Anna Carter [1770-1798]
 Abby Mason, 5 Jul 1820
 Caroline Mathilde Clements, 2 Nov 1831
Children with Caroline Mathilde Clements:
1. AnnMary Brown [1835-1837]
2. Annmary Brown Hawkins [1837-1903]
3. Countess Carrie Mathilde Brown Bajnati
4. John Carter Brown II