'It appears to me,’ said she, ‘that the foreigners have gained their inheritance'

One of the women who does appear in the literary retelling of the Battle of Clontarf in the Cogadh is Sláine, daughter of Brian Boru. After Sitric Silkenbeard's defeat at Glen Máma in 999 and consequent submission to Brian Boru, Sláine was married to Sitric and Gormlaith was married to Brian in an effort to solidify this political alliance.

Seán Duffy, Brian Boru and the Battle of Clontarf, (Dublin, 2013), p. 147.

Sláine in the Cogadh:

Sláine is unnamed in the Cogadh, referred to only as:

Sláine speaks twice in the Cogadh with words designed to irritate her husband, Sitric, king of Dublin, as he watches Brian Boru’s men defeat his forces from atop the battlements of his city.

The first instance occurs after Sitric makes a remark about the prowess of his allies on the field of battle. Sláine replied:

it will be at the end of the day that will be seen." James H. Todd, Cogadh Gaedhel re Gallaibh, p. 191.

The second time Sláine goaded her husband so greatly that he struck her: