More often known as Vigils in the monastic world, but they are the same although the Monastic and pre-Conciliar Roman Offices are considerably different.
At one time in the monastic world “matins” referred to Vigils and Lauds because both were said together; originally “Lauds” referred only to the three final Laudate psalms of Lauds. Traditionally these were psalms 148-149-150 in the Monastic world, and until 1910, in the Roman world as well (the reforms of Pius X in 1910 split them up and spread them over several days, but the Monastic Office schema did not change in 1910, nor much after Vatican II for that matter…).
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