Anthony Foster of Collon, Co Louth, was an Irish

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 politician.
He was the son of John Foster of Dunleer

John Foster of Dunleer

John Foster of Dunleer was elected member to the Irish House of Commons for the constituency of Dunleer, in County Louth. He formerly held the position of Mayor of Dunleer Corporation....

 and Elizabeth Fortesque. He was Lord Chief Baron of the Exchequer of Ireland

Exchequer of Ireland

The Exchequer of Ireland was a body in the Kingdom of Ireland tasked with collecting royal revenue. Modelled on the English Exchequer, it was created in 1210 after John of England applied English law and legal structure to the Kingdom of Ireland...

 and represented Dunleer

Dunleer (Parliament of Ireland constituency)

Dunleer was a constituency represented in the Irish House of Commons to 1801.-History:In the Patriot Parliament of 1689 summoned by King James II, Dunleer was not represented.-1692–1801:...

 in the Irish House of Commons

Irish House of Commons

The Irish House of Commons was the lower house of the Parliament of Ireland, that existed from 1297 until 1800. The upper house was the House of Lords...

 from 1738 to 1761 and subsequently Louth

Louth (Parliament of Ireland constituency)

Louth was a constituency represented in the Irish House of Commons to 1801.-1692–1801:-References:...

 from 1761 to 1767.

He married first Elizabeth Burgh, daughter of Thomas de Burgh

Thomas de Burgh

Colonel Thomas de Burgh 1670 – 18 December 1730), often named in his lifetime as Thomas Burgh, was an Irish military engineer, architect, and Member of the Parliament of Ireland...

. They had children:

• John Foster, 1st Baron Oriel
  John Foster, 1st Baron Oriel
  John Foster, 1st Baron Oriel was an Irish peer and politician.He was the son of Anthony Foster of Louth, an Irish judge . He was elected Member of Parliament to the Irish House of Commons for Dunleer in 1761, a seat he held until 1769...
  
  
• William Foster
  William Foster (bishop)
  William Foster, D.D. was a Church of Ireland bishop.The younger son of Anthony Foster he was chaplain to the Irish House of Commons . Then successively Bishop of Cork and Ross , Bishop of Kilmore and Bishop of Clogher.-Family:He married Catharina-Letitia daughter of Rev. Dr...
  
  (Lord Bishop of Kilmore)
• Margaret Foster who married Henry Maxwell

He married 2nd Catherine Burgh..