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The Ó Brosnacháin coat of arms has the blazon of a gold lion rampant on a blue field, in chief a red boar on a gold field.


The main purposes of this website are:

  • to disseminate information about Clan O’Brosnan
  • to facilitate the sharing of information and communications between Clan O’Brosnan members and the wider public on a global basis
  • to engender an enduring interest in ancient Irish history and appreciation of its cultural contributions to mainland Europe and beyond

With this in mind, our website will shortly include the following feature and functionality:

Clan O’Brosnan Discussion Forum: This important feature of our website enables registered users to initiate and participate in O’Brosnan related topics which are of interest to them.


O'Brosnan Clan Certificate of Membership of the Register of Clans

O’Brosnan Clan Certificate of Membership of the Register of Clans