The Fourth Sunday in Lent is also called “Laetare,” or “Rejoice” Sunday, suggesting a mid-Lent relaxation from our penitential stance. It is also called Mothering Sunday in England from the custom of paying a visit to one’s mother.
Rose vestments are also appropriate on the Third Sunday in Advent, known as “Gaudete,” another “Rejoice” Sunday in a penitential season.