[4] According to the Book of Leinster, Finsnechta recovered his throne by defeating the two sons of Ruaidrí - probably Muiredach and his brother Diarmait.
In the year of his co-rulers death, the annals record that the high king Áed Oirdnide again mustered his forces at Dún Cuair on the Leinster border and again attempted to divide the province among his appointees -the "grandsons" of Bran.
[7] In 818 the Laigin were responsible for the killing of the prior of Cell Mór Enir (Kilmore, near Armagh)[8] The next year in 819, Áed Oirdnide ravaged Leinster in revenge devastating Cualu as far as Glendalough.
[10] Later, in 827, we find Muiredach involved in a disturbance at the fair of Colmán where he attacked the Laigin Desgabair or Uí Cheinnselaig of south Leinster.
[11] His brother, Diarmait (died 832) succeeded him as ruler of the Uí Fáeláin sept and was called King of Airthir Liphe (eastern Liffey) in the annals.