Companion to the Manuale

Peregrinorum servitium

Prayer. Adesto Domine supplicationibus
This Prayer is also found in the Capitular Office of the Breviary.
This Prayer also appears in the ‘Itinerary’ of the Roman Breviary.
See also Cecilia Gaposchkin, ‘From Pilgrimage to Crusade: The Liturgy of Departure, 1095-1300’, Speculum LXXVII.1 (January 2013): 44-91, especially pp. 88 and 91.
In the BCP this Prayer is found among the ‘Collects at Morning or Evening Prayer, or Communion, at the discretion of the Minister’.