St. Brigid is the second patron saint of Ireland, whose feast day is her birthday -- the first day of spring, 1st February (Lá Fhéile Bhride). Brigid is also known as Muire na nGael or "Mary of the Gael," which means Our Lady of the Irish.
Brigid's cross or Brigit's cross is a small cross usually woven from rushes. Typically it has four arms tied at the ends and a woven square in the middle. Historically, there were also three-armed versions. It is suggested that the cross has pre-Christian origins and is related to the sun cross