Ireland Ireland , sometimes known as the Republic of Ireland , was an island on Earth . It shared the island with Northern Ireland , which was a part of the United Kingdom until at least the 33rd century . ( TV : " The Beast Below " ) Many human s mistakenly assumed Gallifrey was a place in Ireland . ( TV : " The Hand of Fear " , " The Invisible Enemy " , " Human Nature " ; AUDIO : " Fugitives " , " The Warren Legacy " ; COMIC : " Gaze of the Medusa " ) Andrew Harper made a similar assumption about Traken . ( AUDIO : " Autumn " ) History . During the late 10th and early 11th centuries , Ireland was the site of a major power struggle between the Norse King Sitric Silkbeard of Dublin and the Irish - born King Brian Boru of Munster . Following the first Leinster Revolt in 1000 , Sitric ' s power was severely diminshed . In 1006 , he lamented that he had become little more than a lapdog to Brian . The Book of Kells was crucial to this power struggle . It was a powerful symbol of Irishness . Sitric was concerned that if Brian gained possession of the book , he would be able to use it to gain control of Dublin and Ireland as a whole . In 1006 , he sent one of his warriors , Olaf Eriksson , to enlist the Abbey of Kells ' chief librarian Brother Bernard ' s assistance in protecting the book so as to prevent Brian from using it as a pawn to place himself on the throne of Dublin . Although Sitric ' s plan to keep the book out of Brian ' s hands was successful , his position was further destabilised by a second revolt in Leinster several years later and the Battle of Clontarf in 1014 . The Eighth Doctor warned Brother Bernard to stay away from Clontarf during that year . ( AUDIO : " The Book of Kells " ) At some point , the First Doctor visited Ireland . ( PROSE : " The Sorcerer ' s Apprentice " ) In the 14th century , the Second Doctor , Jamie McCrimmon and Victoria Waterfield visited Ireland . ( PROSE : " Screamager " ) In 1399 , King Richard II of England visited Ireland . ( AUDIO : " The Doctor ' s Tale " ) In September 1649 , the Seventh Doctor , Ace and Hex visited the Kingdom of Ireland during Oliver Cromwell ' s siege of Drogheda and Wexford . Hex ' s grandmother Hilda Schofield had previously told him about these incidents , which he described as being among the worst atrocities in Irish history . ( AUDIO : " The Settling " ) Following the Glorious Revolution in November 1688 , there were many deaths in Ireland . Jamie attempted to use this to justify altering history in an argument with the Second Doctor . ( AUDIO : " The Glorious Revolution " ) Branwell Damien Fleming was born in Ireland in 1878 and died there in 1935 . ( AUDIO : " Iterations of I " ) The Eighth Doctor ' s companion Molly O ' Sullivan was born in Ireland in 1891 . ( AUDIO : " The Great War " , " X and the Daleks " ) Sinead Iona Fleming was born in Ireland in 1905 . She was murdered by her husband Branwell Damien Fleming on Fleming ' s Island off the coast of the country in 1930 . ( AUDIO : " Iterations of I " ) In December 1981 , the Fifth Doctor , Adric , Nyssa and Tegan Jovanka encountered the I and the I Predator on Fleming ' s Island . ( AUDIO : " Iterations of I " ) Shortly after Miracle Day in 2011 , Ireland went bankrupt , as did Greece . ( TV : " End of the Road " ) Irish soldiers were a large part of the United Nations Third Tactical Brigade , the first forces sent to Mars in the Thousand Day War in 2086 . ( PROSE : " Transit " )