James Hans Hamilton was an Anglo-Irish

Anglo-Irish

Anglo-Irish was a term used primarily in the 19th and early 20th centuries to identify a privileged social class in Ireland, whose members were the descendants and successors of the Protestant Ascendancy, mostly belonging to the Church of Ireland, which was the established church of Ireland until...

 Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

.

Hamilton was the son of Hans Hamilton

Hans Hamilton

Hans Hamilton was an Anglo-Irish Member of Parliament.Hamilton sat for Dublin County in the Irish House of Commons from 1798 until the Act of Union in 1801. He was subsequently elected to the British House of Commons for County Dublin, a seat he held until his death in December 1822...

. He was elected to the House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

 for County Dublin

Dublin County (UK Parliament constituency)

Dublin County was a parliamentary constituency in Ireland, which returned two Members of Parliament to the House of Commons of the Parliament of the United Kingdom....

 in 1841, a seat he held until 1863. Hamilton married Caroline Trant, daughter of John Frederick Trant. He died in June 1863, aged 53. His son Ion

Ion Hamilton, 1st Baron HolmPatrick

Ion Trant Hamilton, 1st Baron HolmPatrick PC , was an Anglo-Irish Member of Parliament.HolmPatrick was the son of James Hans Hamilton and Caroline Trant. He succeeded his father as Member of Parliament for County Dublin in 1863, a seat he held until 1885...

 succeeded him as Member of Parliament for County Dublin and was elevated to the peerage as Baron HolmPatrick

Baron Holmpatrick

Baron HolmPatrick, of HolmPatrick in the County of Dublin, is a title in the Peerage of the United Kingdom. It was created in 1897 for the Lord Lieutenant of County Dublin and former Member of Parliament for County Dublin, Ion Hamilton. Both his father, James Hans Hamilton, and grandfather, Hans...

in 1897.