The manuscript is held in the Royal Irish Academy Library, but up until now there was no record of it containing a version of The Midnight Court in the Connacht Irish of Roscommon rather than the Munster Irish of Clare poet Brian Merriman's original.

Clare Irish survived longer than Roscommon Irish, but both are now extinct.

The Roscommon Irish version of the poem was discovered by dialectologist and sociolinguist Prof Brian Ó Curnáin of the Dublin Institute for Advanced Studies.

It was written by scribe Éamann Ó hOrchaidh (anglicised as Hore or Hoare)* and is being made available to the public for the first time here.