I am Ériu.

There was a time when the gods walked this land 

Against whom, no mortal man could stand

When even the bravest warrior, would tremble at my name

Bards and poets would proclaim my fame

Honoured in music, song and dance

Queens envied my beauty, Kings feared my glance

And the Druids with their magical spells would weave

By the fire that burns on midsummer’s eve

Now I sleep In this cold, dark tomb

Under rock and clay, in this hard stone womb

Awaiting the day of the Raven’s battle cries

To ride my chariot under dark and foreboding skies

I will rise again, in times of dire need

And ride like the wind on my trusted steed

When the foreigner’s footstep is upon our shore

Like many times, they have come before

With their false priests of some blood thirsty deity

They have come to Tara for the Stone of Destiny

An Lia Faíl, the Coronation Stone.

To seize this land and make it their own

As graceful as the hawk that flies

Striking terror with its haunting cries 

Under silver moonlight, her prey quickly dies

Before a blood red dawn, in crimson skies

Our enemies shall flee, from whence they came

And tremble in terror when they remember my name

For I am Éríu, Goddess of this ancient island,

They now called Eire, this sacred land.

2020. Denis Murphy 03 July 2020.

In Irish mythology, Ériu (Irish pronunciation: [ˈeːrʲu]; modern Irish Éire), daughter of Delbáeth and Ernmas of the Tuatha Dé Danann, was the eponymous matron goddess of Ireland. The English name for Ireland comes from the name Ériu and the Germanic (Old Norse or Old English) word land.

I have also mixed the characteristics of another goddess The Morrígan or Mórrígan, also known as Morrígu, is a figure from Irish mythology. The name is Mór-Ríoghain in Modern Irish. It has been translated as “great queen” or “phantom queen”. The Morrígan is mainly associated with war and fate, especially with foretelling doom, death or victory in battle.

 and warrior queen Maebh..let’s just call it poetic licence !

Information from Wikipedia.

The Lia Fáil on the Hill of Tara in County Meath, Ireland, which served as the coronation stone for the High Kings of Ireland. It is also known as the Coronation Stone of Tara. According to legend, all of the kings of Ireland were crowned on the stone up to Muirchertach mac Ercae, c. AD 500. Wikipedia