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  1. Celtic Mythology
    Otherworld Warrior Society Celtic Cycles Facts & Figures Genealogy Bibliography About Celtic Myths
  2. Warrior Society
    Red Branch Fianna High Kings Druids Bards Minor Celtic Characters
  3. Fianna

Fianna

Fianna was a warrior band which was established to protect the high king of Ireland and the kingdom. It was generally called Fianna Éireann.

Conn Cétchathach was the high king of Ireland who established the Fianna. The Fianna was comprised of many clans, but only two clans were dominant for the supreme leadership – Clan Baiscne of Leinster and Clan Morna of Connacht. The Fianna was under the leadership of the Fianna captain known as rígfhéinnid (righfhéinnidh or fiannuigeach). Sometimes the Fianna captain was called a king.

The two clans became rival factions during the leadership of Cumhaill, a chieftain of Clan Baiscne, and he was killed in a clan war against the Clan Morna. Goll, chieftain of Clan Morna, ruled the Fianna until Finn, the son of Cumhaill, was awarded the captaincy by the high king, Cormac Mac Airt, who was the son of Art and grandson of Conn Cétchathach. During the reign of Cormac Mac Airt and the leadership of Finn Mac Cumhaill, the power of the Fianna reached new heights.

Apart from the Baiscne and Morna clans, the Bruidhean Chaorthainn ("Hostel of the Rowan Trees") mentioned two other clans – the Mican-Smoil and Clan O'Navnan (Navin or Nemnann). There was also Clan Ronain (which the hero Caílte come from), and clans from Leinster, Ulster and Munster. In the tale, the Death of Finn, it also mentioned the fian of Dubh-dithribh and Dubh da bhoirenn.

During the reign of Caribe, however, the king became jealous of the power of the Fianna. Caribe sought its destruction. The two rival clans again opposed one another. Finn Mac Cumhaill and Clan Baiscne were defeated.

The war-cry of the Fianna was Dord Fian, and the warriors were summoned by borabu, the horn of the Fianna.

  • Clan Baiscne

  • Clan Morna

Clan Baiscne

Cumhaill

Cumhaill

Crimmal

Crimmal

Finn Mac Cumhaill

Finn Mac Cumhaill

Oisín

Oisín

Oscar

Oscar

Mac Lughach

Mac Lughach

Caílte

Caílte

Díarmait

Díarmait

Diorruing

Diorruing

Clan Morna

Goll Mac Morna

Goll Mac Morna

Conan Mac Morna

Conan Mac Morna

Lia

Lia

Conan Mac Lia

Conan Mac Lia

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Fenian Cycle

Jimmy Joe Timeless Myths

By Jimmy Joe

Warrior Society:

  • • Red Branch
  • • Fianna
  • • High Kings
  • • Druids
  • • Bards
  • • Minor Celtic Characters
High Kings and Clans of the Fianna

High Kings and Clans of the Fianna

Here are a few genealogy tables from the Fenian Cycle. Below is a family tree of Conn Cétchathach and Cormac Mac Airt, two high kings of Ireland. There are also several family trees of the Fianna. One tree has Finn Mac Cumhaill, along with that of...

January 20th, 2001 • Jimmy Joe
Finn Mac Cumhaill

Finn Mac Cumhaill

The greatest Fianna warrior in the Fenian cycle. Finn was the son of Cumhaill and Muirenn (Muirne, Murna), who was the daughter of the druid Tadg and the granddaughter of Nuada of the Silver Hand. During the reign of Conn, his father died before h...

November 25th, 1999 • Jimmy Joe
Fenian Cycle

Fenian Cycle

Fenian Cycle was often called the Ossian Cycle (or Ossianic Cycle). The Fenian Cycle is a collection of stories about the warriors within a military order called the Fianna Éireann during the reign of Conn Cetchathach and Cormac Mac Airt. The main...

November 25th, 1999 • Jimmy Joe
Cumhaill

Cumhaill

Captain of the Fianna (rígfhéinnid) and chieftain of Clan Baiscne. Cumhaill (Cumhall or Cool) was the son of Trenmor and descendant of Baíscne. Cumhaill was also the brother of Crimmal. Cumhaill married Muirenn, daughter of Tadg and granddaughter ...

November 25th, 1999 • Jimmy Joe
From Demna to Finn

From Demna to Finn

Below is the account of Finn's birth and early adventures, ending with him winning the captaincy of the Fianna. Birth of Finn Training of Finn Rise to Captaincy of the FiannaBirth of Finn Although Muirenn lived quite a distance away from the battl...

November 25th, 1999 • Jimmy Joe
Caílte Mac Ronan

Caílte Mac Ronan

A Fian bard-warrior. Caílte (Cailte) was sometimes called the nephew of Finn Mac Cumhaill. Caílte was the son of Ronan (Ronain), and he was probably a chieftain of his own clan as Clan Ronan. There are several variations of spelling for Caílte's n...

November 25th, 1999 • Jimmy Joe
Fiachu Muillethan

Fiachu Muillethan

King of Munster. Fiachu was the son of Eógan, king of Munster, and of Moncha, daughter of the blind druid Dil Maccu Crecga of Osraige. Dil Maccu Crecga advised Eógan to sleep with his daughter Moncha, because the druid knew that the king would die...

November 8th, 1999 • Jimmy Joe
Red Branch

Red Branch

The name Red Branch comes from the name of the assembly hall in Emain Macha. It was called "Craebh Ruadh" in Irish Gaelic. The Red Branch became a military order which served as the king's personal bodyguard, as well as defending Ulaid (Ulster) fr...

November 8th, 1999 • Jimmy Joe
Battle of Gabhra

Battle of Gabhra

When Cairbre, son of Cormac Mac Airt, became high king of Ireland, he wanted to break the power of the Fianna. Cairbre believed that the Fianna had become too powerful and arrogant. Cairbre accepted the marriage between Sgeimhsholas, his daughter,...

November 25th, 1999 • Jimmy Joe
Hostel of the Quicken Trees

Hostel of the Quicken Trees

Bruidhean Chaorthainn ("Fairy Palace of the Quicken Trees" or "Hostel of the Rowan Trees") was a common tale in Irish myth, where the hero was trapped in a fairy palace or hostel and another hero had to free them through various adventures. Enchan...

November 25th, 1999 • Jimmy Joe
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