|“||The Radetzky March ability now also spawns Hungarian Grenadiers.||”|
Austro-Hungarian Empire is a technology available in Age of Empires III: Definitive Edition - Knights of the Mediterranean that can be researched at a Trading Post or Tambo built on a House of Habsburg palace. Once researched, the 'Radetzky March' ability of the House of Habsburg now also spawns Hungarian Grenadiers: Grenadiers with +6 LOS and range.
- Despite the technology being named after the Austro-Hungarian Empire, the icon uses the flag of the Austrian Empire rather than Austria-Hungary. However, a Hungarian Grenadier is also depicted.