Johann Josef Wenzel Anton Franz Karl, Graf Radetzky von Radetz was a Czech nobleman and Austrian field marshal. He served as chief of the general staff in the Habsburg monarchy during the later period of the Napoleonic Wars and proved instrumental in the allied victory as one of the primary architects of the Trachenburg Plan and the Leipzig Campaign. Afterwards, he embarked on military reforms of the Austrian army. His reputation was one of discipline and fairness; he was revered by his troops among whom he was known as Vater ('Father') Radetzky. He is best known for the victories at the Battles of Custoza and Novara during the First Italian War of Independence. Johann Strauss I's Radetzky March was commissioned to commemorate Radetzky's victories at the Battle of Custoza.

Czech nobility consists of the noble families from historical Czech lands, especially in their narrow sense, i.e. nobility of Bohemia proper, Moravia and Austrian Silesia – whether these families originated from those countries or moved into them through the centuries. These are connected with the history of Great Moravia, Duchy of Bohemia, later Kingdom of Bohemia, Margraviate of Moravia, the Duchies of Silesia and the Crown of Bohemia, the constitutional predecessor state of the modern-day Czech Republic.