Baroness Arlene Foster is a prominent Northern Irish politician, best known for her leadership of the Democratic Unionist Party (DUP) and her tenure as First Minister of Northern Ireland from 2016 to 2017. She was elected to the Northern Ireland Assembly in 2003 and held various ministerial roles, including Minister for Enterprise, Trade, and Investment. In 2015, she became DUP leader, making history as the first female First Minister of Northern Ireland. She was later appointed as a life peer in the House of Lords as Baroness Foster of Aghadrumsee.