An Irish doctor and a senator are taking a case to the High Court to fight for their same-sex marriage to be identified under Irish law.

Common law partners Dr Ann Louise Gilligan and Senator Katherine Zappone will issue fresh legal proceedings as part of their long term battle to have their Canadian marriage recognized under Irish law, the Irish Times reports.

The case will test the provisions of the Civil Registration Act 2004, which defines marriage as being between a man and a woman, and the Civil Partnership Act 2010, who prohibits people who have registered a civil partnership from marrying.