[1] His father, Émile Prüm, was a fervent Roman Catholic and a prominent conservative politician,[1] and this greatly affected his political outlook.

[3] Pierre Prüm, leader of the Independent National Party, was asked to form a new government, and relied on an eclectic alliance of liberals, socialists, some Deputies on the right.

[4] Although they came about without Luxembourgish participation, they marked an important date in the evolution of the Grand Duchy's defence policy.

[4] The fact that France and Germany guaranteed the inviolability of national borders, and agreed not to use war, consolidated Luxembourg's international situation.

[4] Pierre Prüm made use of Locarno Treaties' possibilities for international arbitration, to start talks with the Belgian and French governments.

[3] In the legislative elections of 1 March, the ruling Party of the Right lost its majority in the Chamber of Deputies, winning only 22 of the 47 seats.

[3] Prüm sought to improve relations with France and Germany, which had been alienated by the formation of the Belgium-Luxembourg Economic Union in 1921.

On 9 October, Prüm negotiated a working arrangement on the co-ordination of iron production in France and Luxembourg.

[1][2] When Nazi Germany occupied Luxembourg in 1940, he left the pro-Nazi Society for German Literature and Art (GEDELIT).