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The Celtic kingdoms 243
sea to Man and south-west Scotland and the battles for the Ulaid overkingship
became immensely complicated by the fact of D
´
al Riata interests (and power)
on the British mainland. Ainmere’s son Aed opportunely supported Aed
´
an
mac Gabr
´
al Riata at the so-called ‘convention’ of Druim Cett against
ain of D
´
the then Ulaid overking, probably B
´
an of the D
´
aet
´
al Fiatach;
28
the outcome
was an agreement that the Scottish D
´
al Riata should not owe tribute to the
Ulaid overking. Battles for the Ulaid overkingship continued on Man in the
570s and 580s, and in Ireland in the 620s, until 637 and Magh Roth; here Aed’s
son Domnall roundly defeated the D
´
al Riata, led by Domnall Brecc, both on
the Irish mainland, where he had allied with the D
´
al nAraide overking, and
also at sea, where he had allied with the Cen
´
ogain. From that time D
´
el nE
´
al
Riata interests focussed much more closely on Scotland, Ulaid overkingship
conflicts were less volatile, and the U
´
ıN
´
eill were much more consistently
successful. Domnall mac Aedo died peacefully in his bed (and – for his unusual
success – was the first to be called ‘king of Ireland’ by the contemporary
annalist).
29
Though the U
´
ıN
´
eill were more consistently successful, in other words
constantly made themselves overkings and overoverkings, until the end of
the century they continued to battle with each other for supremacy, that is,
to establish overkingships. Although there continued to be conflicts within
northern and within southern U
´
ıN
´
eill branches, the most prominent conflicts
were between north and south and were increasingly focussed on the kingship
of the symbolic site of Tara: he who held Tara might be said to be overking
´
eill overkings. So, Diarmait mac Aedo Sl
´
of all U
´
ıN
´
aine of the south shared
the Tara kingship with his brother Blathmac and defeated Conall of Cen
´
el
Conaill in 654; his successor Finnechta, having killed his first cousin the king,
ael D
´
el nE
´
defeated M
´
uin of Cen
´
ogain in 675; but Loingsech mac Oengusso of
the northern Cen
´
el Conaill, the second Irish king to be called ‘king of Ireland’
bya contemporary annalist, took the Tara kingship without opposition and
ruled till 703.
30
It is from the late seventh century that the first list of Tara
kings survives, the Baile Chuind, and this in itself emphasises the now crucial
significance of the Tara kingship in the politics of the north and midlands.
31
During the seventh century the geographical range of the prominent U
´
ıN
´
eill
overkings had increased dramatically: originally playing politics within the
narrow confines of a few tuatha,by 700 they moved over half of Ireland. In the
eighth they were to range even wider, as also to establish succession to the Tara
kingship, which from 734 alternated between Cen
´
ogain of the northern
el nE
´
28
Traditionally in 575, but perhaps as late as 590,Meckler (1997).
29
Annals of Ulster s.a. 565, 574, 575, 577, 578, 580, 581, 582, 586, 626, 627, 629, 637, 642.
30
Annals of Ulster s.a. 654, 675, 703.
31
Murphy (1952); Byrne (1973), pp. 91, 104–5, 276–7;Irwin (1998).