Kalends of January
[...]
AD 538.
Failure of bread.
The battle of Luachair. Tuathal Maelgarb son of Cormac Caech son of Cairpre son of Niall Naígiallach was victor as some state.
Silverius, a Roman by birth, sat 1 year, 2 months and 11 days; he died a confessor.