"Seamus did not answer immediately; he was making rather a meal of ensuring that his poster of the Kenmare Kestrels Quidditch team was quite straight. Then he said, with his back still turned to Harry, 'Me mam didn't want me to come back.'" (OP11)
The Kestrels are an Irish team, founded in 1291 (QA7).
Kenmare is a town in County Kerry, Ireland. There are a few sports teams listed in its Wikipedia entry (Gaelic football, football and basketball), but no Quidditch teams (Wikipedia).