The 1st Mechanized Infantry Brigade (German: Panzergrenadierbrigade 1) in Hildesheim was a formation in the Bundeswehr, which was subordinated to the 1st Armoured Division in Hanover.

During its lifetime the Brigade was stationed between the Lüneburg Heath, Harz Mountains, the Solling hills and the River Weser.

The steed recalls the Welf dukes and the Kingdom of Hanover.

The original Saxon tribal emblem was adopted in 1235 by the Welf dukes, the Dukes of Brunswick and Lüneburg, as an additional coat of arms.

Through the amalgamation of part of the Lüneburg-Brunswick region with the Principality, later Kingdom, of Hanover the Saxon steed appeared in 1705 on the escutcheon of the kingdom's coat of arms surrounded by the main yellow and white shield.