Pierre Ringel was born on May 1, 1922, in Montreuil-sous-Bois, Seine-Saint-Denis, France.
Gerhard Ringel died in 2008.
Julius Ringel died on 1967-02-11.
Jean-Désiré Ringel d'Illzach died in 1916.
Erwin Ringel died on July 28, 1994, in Bad Kleinkirchheim, Carinthia, Austria.
Gerhard Ringel was born in 1919.
Gian-Piero Ringel was born in 1976.
Julius Ringel was born on 1889-11-16.
Jean-Désiré Ringel d'Illzach was born in 1849.
Erwin Ringel was born on April 27, 1921, in Timisoara, Romania.
Pierre Ringel has: Performed in "Montmartre sur Seine" in 1941. Played Daillat in "Les inconnus dans la maison" in 1942. Played Un jeune du centre in "Le carrefour des enfants perdus" in 1944. Played Le marchand de porte-bonheur in "Les amoureux sont seuls au monde" in 1948. Played Premier homme in "Le coeur sur la main" in 1948.
Gerhard Ringel has written: 'Map color theorem' -- subject(s): Map-coloring problem 'Topics in Combinatorics and Graph Theory'