Christ Church is the second Church of Ireland cathedral in Dublin - the other one is St Patrick’s Cathedral. It is believed that it started off as a small wooden church built around 1030 by the Viking King Sitric. It was built inside the old city walls; all around it was the old Viking city with packed houses, workshops and narrow lanes.It was replaced around 1200, with the beginnings of the stone building we see today.Herein lies the man (maybe) responsible for many of the country's woes.The cathedral famously contains the reputed tomb of Strongbow, a medieval Norman-Welsh peer and warlord who came to Ireland in 1169 at the request of King Diarmuid MacMorrough and whose arrival marked the beginning of Norman/English involvement in Ireland.