Walter joined the Swiss guard, and for 22 years, from 1569 to 1591 he was a guard captain for the pope in Bologna. He owned land in Altdorf, but lived much of his live in Bologna, Italy. He was a patron of the arts and brokered art to Uri from the Flemish painter Denys Calvaert. He was a follower of the Capuchin Order of Priests.
Walter was married to Anna Reichmuth (she was of the same family as Verena Reichmuth, the second wife of Walter’s grandfather Johann Zumbrunnen II. Verena was not an ancestor of Walter and the exact relationship between the two is unknown.) Anna may have died because Walter married a second time, to an Italian woman named Fiorbellina Mugina.
He had no known children with either wife, although it’s possible that he had children who became Italian. I believe that some Zumbrunnen’s moved to Uri and adopted the surname Fontana (which also means fountain).
Name: Walter Zumbrunnen
Residence: Altdorf and Bologna
Offices: Captain of the Papal Guard in Bologna, 1569-1591
Father: Mansuetus Zumbrunnen
Mother: Barbara Aschwanden
Siblings: Landammann Johann Zumbrunnen III, Erasmus Zumbrunnen, Magdalena Zumbrunnen, Margarita Zumbrunnen, Dorothea Zumbrunnen, Lucretia Zumbrunnen, Mansuetus Zumbrunnen, Kunigunda Zumbrunnen, Hugo David Zumbrunnen, Josue Zumbrunnen
Spouse: Anna Reichmuth, Fiorbellina Mugina
Children: None known
Cousin: Martin Zumbrunnen