The notice in the Limerick Chronicle of 1809 is a little more informative :
On 2nd May at the house of her brother Wm. Roche in Limerick, Edward O'Meagher of Marl Hill
to daughter of the late Stephen Roche.

The lady's name was Anastasia, second daughter of Stephen Roche and Sarah O'Brien
You often find the names Edward and Edmund confused in these notices.