The 20-year-old daughter of Wexford TD Mr John Browne was fatally injured when her car was in collision with a cattle truck at Coolroe, Clonroche, Co Wexford, about 11 a.m. on Saturday.
Ms Andrea Browne of Kilcannon, Enniscorthy, was pronounced dead at the scene. The truck driver was uninjured.
Meanwhile, gardai have released the names of the couple who were killed when their car was in collision with a Daihatsu four-wheel drive vehicle at Blake's Cross, Lusk, at 6.05 p.m. on Friday.
Mr Pierce O'Daly (64) and his wife, Nuala (61) of Raheny, Dublin, were pronounced dead at the scene. The driver of the other vehicle was seriously injured.