Succession
Deaghaidh himself died in 888. According to the chronicle of St Tola, he was just short of 55 years old. In a remarkably short time, he had gone from a spare son of a minor noble family to one of the leading figures in Ireland. At the time of his death, the only Irish power that could compare was his wife's family, the ancient and venerable O'Niells. By comparison, the O'Deas were a new foundation of upstarts, and it was far from certain their power would survive without their unique founder.
Deaghaidh never rose to the High Kingship, if that was even his aspiration. Yet his example shaped the rulers who would follow him. He forcibly united his neighbors under his banner by being opportunistic. He also repulsed at least four major Norse raids. His regime was strong enough that he felt secure in leaving the country for several months to make a pilgrimage to Santiago, beginning what would turn out to be a long relationship between the O'Deas and that city. Aside from his military and political achievements, Deaghaidh was also a scholar and poet, though none of his works have survived. He was especially devoted to the study of ancient Irish Brehon Law, and of the concept of
ḟír flathemon, or "Ruler's Truth," eloquently laid out by pre-Christian poets and later written by monks:
Druid Morainn said:
Let him magnify the truth, it will magnify him
Let him strengthen truth, it will strengthen him
Let him guard truth, it will guard him
Let him exalt truth, it will exalt him
For so long as he guards truth, good shall not fail him
and his rule shall not perish
For it is through the ruler's truth
that the great clans are goverened
Through the ruler's truth massive mortalities are
averted from men.
Through the ruler's truth mighty armies of invaders are
drawn back into enemy territory.
Through the ruler's truth every law is glorious and
every vessel full in his lands
Through the rulers's truth all the land is fruitful and
every child is born worthy.
Through the ruler's truth there is abundance of corn.
Darkness yields to light
Sorrow yields to joy
An oaf yields to a sage
A fool yields to a wise man
A serf yields to a free man
Inhospitality yields to hospitality
Niggardliness yields to generosity
Meaness yields to liberality
Impetuosity yields to composure
Turbulence yields to submission
A usurper yields to a true lord
Conflict yields to peace
Falsehood yields to justice.
More aspirational than reflective of how Deaghaidh and his descendants ruled, these works reveal a society still deeply rooted in the ancient past, despite the introduction of Christianity and the upheavels of the Viking era. It is therefore worth noting that in his arrangements for his succession, Deaghaidh actually defied most of the traditions and laws that governed inheritance in Ireland.
Under the normal Tanistry of the times, Deaghaidh's property was to be divided among his heirs (he had 5 sons and a daughter), with the Kingship passing to a Tanist, heir-designate, elected by his clan. Usually minors did not inherit, for the sensible reason that they would not be able to fulfill their duties. But since the Tanist was also required to be a blood relative of the late king, and Deaghaidh's siblings apparently died childless, it left his eldest son Tanist by default. Young Aed was still a teen, but had already acquired a reputation for combining his father's love of justice with a warrior spirit his father never possessed.
Aed Mac Deaghaidh proclaimed his young brothers Ri of Ormond and Desmond, dividing his father's lands more or less equally, while keeping Thomond and the burgeoning royal stronghold of Dysert for himself. While appearently intended as an ad-hoc solution to the specific reality of the time, this pattern of sons succeeding fathers while dividing lands would be carried forward into the future. Ironically the O'Deas had, seemingly unknowingly, reproduced the Gavelkind succession favored by the Norse and other Germanic peoples.
((By default I start as Gavelkind, not Tanistry. Not sure if this is due to custom ruler, or if all Irish lords are Gavelkind in this start. Since I couldn't switch inheritance laws till after I created the kingdom of Ireland, and even then only after I'd reigned for a while and achieved positive relations with all vassals, gavelkind stuck around for a fair bit.))
Unmarried at the time of his ascension, Aed married into the royal Mac Ailpin house of Scotland. This would begin a complex, long lasting relationship between the O'Dea's and Scotland.
This marriage didn't last long, with Muriel Mac Ailpin dying shortly after giving birth to a stillborn daughter. While apparently the young queen was well liked, and remembered for her patronage of romantic poetry, this freed up Aed to make a marriage that seemed less auspicious, but would ultimately be momentous.
Aed again looked overseas for a bride, betrothing himself to the daughter of the King of Brittany. The Breton connection would bring benefits, but his bride would herself prove to be one of the most influential women in Irish history, outside of mythological figures like Medb. Heodez was not nearly as popular as her predecessor. Ironically, this has led to her being one of the best documented women of her era, as among her detractors was the anonymous monk in who recorded the Chronicle of St Tola. Her actions were meticulously documented with disapproval, giving us a picture of the political mastermind who defined the reigns of her husband and son.
Heodez may or may not have been the driving force behind the O'Deas allying with the Saxon King of Wessex. In any case, Aed's troops sacked the Viking city of Dyflinn, capturing numerous relatives of its rulers while they were abroad in England. Thanks in part to this intervention, Wessex was able to force its Norse invaders to agree to a truce, a milestone moment for the Saxons, who had been helpless against previous invasions. Heodez was definitely the force behind her brother in laws' auspicious marriages.
When Artur, Aed's youngest brother, married into the extremely powerful Karling dynasty, it was a sign of how ambitious the O'Dea clan had become. One cannot help but attribute this greater interest in affairs on the continent to Heodez, whose family were neighbors of Karling France. While Heodez managed the politics and diplomacy, Aed himself led several successful defenses against Norse raiders, though these bands were becoming worrisomely large and frequent. In 902, while leading his troops against raiders threatening neighboring Connaught, Aed was afflicted with "the Great Pox."
A popular theory has it that this was an STD, which would justify the accusation leveled at her by her contemporaries that Heodez was to blame. Heodez gave birth to a son, Cormac, who was afflicted with the same disease not long afterwards. It is worth noting that Heodez herself never is reputed to have had symptoms, and in fact lived a long, seemingly healthy, life.
The era was an unhealthy one. Monastic sources show a dramatic increase in deaths, and waves of disease hit Ireland: Measles, Consumption, Typhus, all in succession. In this atmosphere of gloom it was not as shocking when Aed O'Dea died, only 31 years old. This left one of the two most powerful realms in Ireland in the hands of a babe in arms.