Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| County | Irish name | County town | Most populous city/town | Province | Region |
| --- | --- | --- | --- | --- | --- |
| The 32 "traditional" counties | The 32 "traditional" counties | The 32 "traditional" counties | The 32 "traditional" counties | The 32 "traditional" counties | The 32 "traditional" counties |
| Antrim | Aontroim (Contae Aontroma) | Ballymena (formerly Carrickfergus 1850–1970) | Belfast | Ulster | Northern Ireland – UKN0 |
| Armagh | Ard Mhacha (Contae Ard Mhacha) | Armagh | Craigavon | Ulster | Northern Ireland – UKN0 |
| Carlow | Ceatharlach (Contae Cheatharlach) | Carlow | Carlow | Leinster | South-East – IE024 |
| Cavan | An Cabhán (Contae an Chabháin) | Cavan | Cavan | Ulster | Border – IE011 |
| Clare | An Clár (Contae an Chláir) | Ennis | Ennis | Munster | Mid-West – IE023 |
| Cork | Corcaigh (Contae Chorcaí) | Cork | Cork | Munster | South-West – IE025 |
| Donegal | Dún na nGall (Contae Dhún na nGall) | Lifford | Letterkenny | Ulster | Border – IE011 |
| Down | An Dún (Contae an Dúin) | Downpatrick | Belfast | Ulster | Northern Ireland – UKN0 |
| Dublin | Áth Cliath (Contae Átha Cliath) | Dublin | Dublin | Leinster | Dublin – IE021&#124; |
| Fermanagh | Fear Manach (Contae Fhear Manach) | Enniskillen | Enniskillen | Ulster | Northern Ireland – UKN0 |
| Galway | Gaillimh (Contae na Gaillimhe) | Galway | Galway | Connacht | West – IE013 |
| Kerry | Ciarraí (Contae Chiarraí) | Tralee | Tralee | Munster &#124; West – IE013 | South-West – IE025 |
| Kildare | Cill Dara (Contae Chill Dara) | Naas | Newbridge | Leinster | Mid-East – IE022 |
| Kilkenny | Cill Chainnigh (Contae Chill Chainnigh) | Kilkenny | Kilkenny | Leinster | South-East – IE024 |
| Laois | Laois (Contae Laoise) | Portlaoise | Portlaoise | Leinster | Midlands – IE012 |
| Leitrim | Liatroim (Contae Liatroma) | Carrick-on-Shannon | Carrick-on-Shannon | Connacht | Border – IE011 |
| Limerick | Luimneach (Contae Luimnigh) | Limerick | Limerick | Munster | Mid-West – IE023 |
| Londonderry | Doire (Contae Dhoire) | Coleraine | Derry | Ulster | Northern Ireland – UKN0 |
| Longford | An Longfort (Contae an Longfoirt) | Longford | Longford | Leinster | Midlands – IE012 |
| Louth | Lú (Contae Lú) | Dundalk | Drogheda | Leinster | Border – IE011 |
| Mayo | Maigh Eo (Contae Mhaigh Eo) | Castlebar | Castlebar | Connacht | West – IE013 |
| Meath | An Mhí (Contae na Mí) | Navan (previously Trim ) | Navan | Leinster | Mid-East – IE022 |
| Monaghan | Muineachán (Contae Mhuineacháin) | Monaghan | Monaghan | Ulster | Border – IE011 |
| Offaly | Uíbh Fhailí (Contae Uíbh Fhailí) | Tullamore (formerly Philipstown | Tullamore | Leinster | Midlands – IE012 |
| Roscommon | Ros Comáin (Contae Ros Comáin) | Roscommon | Roscommon | Connacht | West – IE013 |
| Sligo | Sligeach (Contae Shligigh) | Sligo | Sligo | Connacht | Border – IE011 |
| Tipperary | Tiobraid Árann (Contae Thiobraid Árann) | Clonmel & (formerly) Cashel | Clonmel | Munster | n/a (see footnote) |
| Tyrone | Tír Eoghain (Contae Thír Eoghain) | Omagh | Omagh | Ulster | Northern Ireland – UKN0 |
| Waterford | Port Láirge (Contae Phort Láirge) | Dungarvan (previously Waterford ) | Waterford | Munster | South-East – IE024 |
| Westmeath | An Iarmhí (Contae na hIarmhí) | Mullingar | Athlone | Leinster | South-East – IE024 |
| Wexford | Loch Garman (Contae Loch Garman) | Wexford | Wexford | Leinster | South-East – IE024 |
| Wicklow | Cill Mhantáin (Contae Chill Mhantáin) | Wicklow | Bray | Leinster | Mid-East – IE022 |
| Newer "administrative" counties | Newer "administrative" counties | Newer "administrative" counties | Newer "administrative" counties | Newer "administrative" counties | Newer "administrative" counties |
| Dún Laoghaire–Rathdown | Dún Laoghaire–Ráth an Dúin | Dún Laoghaire | Dún Laoghaire | Leinster | Dublin |
| Fingal | Fine Gall | Swords | Swords | Leinster | Dublin |
| North Tipperary | Tiobraid Árann Thuaidh | Nenagh | Nenagh | Munster | Mid-West – IE023 |
| South Dublin | Áth Cliath Theas | Tallaght | Tallaght | Leinster | Dublin |
| South Tipperary | Tiobraid Árann Theas | Clonmel | Clonmel | Munster | South-East – IE024 |
Question:
Irish name of an dún (contae an dúin) has what county town?
Answer:
Downpatrick