Born in Neckarsteinach, Valentin Peter Feuerstein was the son of a commercial painter and grew up in a Catholic family.
[1] When he spent time in Italy during World War II, he was inspired to focus on artistic painting instead of taking over his father's business.
A 1985 window in the Ulmer Münster depicts the mathematicians and physicists Nicolaus Copernicus, Galileo Galilei, Johannes Kepler, Isaac Newton and Albert Einstein.
[2] Feuerstein produced a cycle of windows at the Dom des Frankenlandes in Wölchingen, another for the Breisach Minster [de],[3] and a third in the Überwasserkirche in Münster.
[5] In St. Michael [de] in Pforzheim, which was destroyed in World War II, he created windows related to the history of the town.