Garden Fountains for Bathing & Ornament.

Four couples seated in a round bath around a garden fountain; a man playing a flute at right; illustration to an unidentified Latin edition of Sebastian Münster, Cosmographia, probably printed by Petri in Basel, c.1544-52.

See:
Did people in the Middle Ages take baths? Medievalists.net April 13, 2013

Archibald, Elizabeth, “Did Knights Have Baths? The Absence of Bathing in Middle English Romance,” Cultural Encounters In The Romance Of Medieval England, edited by Corinne Saunders (Boydell, 2005)

Caskey, Jill, “Steam and “Sanitas” in the Domestic Realm: Baths and Bathing in Southern Italy in the Middle Ages,” Journal of the Society of Architectural Historians, Vol. 58, No. 2 (1999)

Harvey, Barbara, Living and Dying in England, 1100-1540: The Monastic Experience (Clarendon Press, 1993)

Holmes, Urban Tigner, Daily Life in the Twelfth-Century (University of Wisconsin Press, 1952)

Lucas, A.T., “Washing and Bathing in Ancient Ireland,” The Journal of the Royal Society of Antiquaries of Ireland, Vol. 95, No. 1/2 (1965)

Newman, Paul B., Daily Life in the Middle Ages (McFarland and Co., 2001)

Smith, Virginia, Clean: A History of Personal Hygiene and Purity (Oxford University Press, 2007)

van Dam, Fabiola I., “Permeable Boundaries: Bodies, Bathing and FLuxes, 1135-1333,” Medicine and Space: Body, Surroundings and Borders in Antiquity and the Middle Ages, ed. Patricia Baker (Brill, 2012)