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New Castle or Greencastle

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History of New Castle

New Castle (also known as Greencastle or Northburgh Castle) was a Norman castle built in 1305 by the de Burgh family, the Earls of Ulster. Around 1333 the de Burgh family lost power and New Castle became an Ó Dochartaigh stronghold for over three centuries following. O'Clery mentions a group of Ó Dochartaighs living at New Castle in the mid-1600s.

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Click the thumbnails below to open the photos in a larger viewer!

Drone footage & history of Northburg Castle by Peter Homer 2015. 

Other Resources to Check out

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Monument Information

The archaeological site at Greencastle in Eleven Ballyboes Townland consists of the castle (National Monument Service RMP# DG022-003----), it's upper ward (RMP# DG022-003001-), and bawn (RMP# DG022-003001-). View more information at Historic Environment Viewer and County Donegal.

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Visit Greencastle!

  • Physical Location: 7 The Fort Holiday Homes, Eleven Ballyboes, Greencastle, Co. Donegal, Ireland

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Sources:

  • COMING SOON

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The O'Doherty Heritage website is designed to be your place for all things Ó Dochartaigh. Whether your name or ancestry is from a Doherty, Dougherty, Daugherty, Docherty, Dogherty, if your family used another spelling of our name, or if you're from one of our related County Donegal families, such as the McDevitt/McDaid, McBride, McConlogue, or others–we welcome you to the O'Doherty Heritage website!

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Visit our other O'Dochartaigh websites, Association of O'Dochartaighs and Dan Doherty's odochartaigh.org for more.

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This site is curated by Will Dougherty III in coordination with the The Ó Dochartaigh Clann Association. ©2025 O'Doherty Heritage. Site Policies. Email hello [at] odohertyheritage [dot] org.

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