Áed in Macáem Tóinlesc or Aodh an Macaoimh Tóinleasg (died 1177) was a 12th-century ruler of Tulach Óc and Tír Eogain.
Áed secured his hold on kingship partly by submitting to the Connacht high king Ruaidrí Ua Conchobair.
[9] For more than a century the Uí Néill of Tír Eogain had been eclipsed by the Meic Lochlainn kin-group centred on Inishowen; the latter claimed descent from Domnall Dabaill, Niall's brother (sharing Áed Findliath as father), and thus were relatives.
The process of overturning Meic Lochlainn dominance in Tír Eogain was begun by Áed, something encapsulated by his traditional nickname in Macáem Tóinlesc, "the lazy-rumped lad".
[3] The 16th-century Leabhar Eoghanach claimed he had gained this appellation by refusing to stand in the presence of Muirchertach, the Meic Lochlainn high king, when the latter visited Áed's foster-father.
[3] After proclaiming himself king, Áed though still had to defeat Muirchertach's sons, including the heir Niall Mac Lochlainn.
[14] The details are unclear, but Mac Carthaigh's Book related that in 1171 Áed was ruler of Tír Eogain and all Ulster.