In the Holy Roman Empire, the collective term free and imperial cities, briefly worded free imperial city, was used from the fifteenth century to denote a self-ruling city that had a certain amount of autonomy and was represented in the Imperial Diet.
Swabian Rottweil maintained its independence up to the mediatization of 1802–03. Rottweil, c. 1435.
A partial list of the Free Imperial Cities of Swabia based on the Reichsmatrikel of 1521. It indicates the number of horsemen (left hand column) and infantry (right hand column) which each Imperial Estate had to contribute to the defence of the Empire.
Weissenburg-im-Nordgau in 1725
Württemberg more than doubled its size when it absorbed some 15 Free Cities (in orange) and other territories during the mediatisations of 1803 and 1806.
Imperial Diet (Holy Roman Empire)
The Imperial Diet was the deliberative body of the Holy Roman Empire. It was not a legislative body in the contemporary sense; its members envisioned it more like a central forum where it was more important to negotiate than to decide.
Seating plan for an inauguration of the Imperial Diet in the Regensburg Town Hall from a 1675 engraving: Emperor and prince-electors at the head, secular princes to the left, ecclesiastical to the right, deputies of imperial cities in the foreground.
The summons for Luther to appear at the Diet of Worms, signed by Charles V. The text on the left was on the reverse side.
"Here I stand": Martin Luther at the Diet of Worms, 1521 19th-century painting by Hermann Wislicenus
The coats of arms of prince electors surround the Holy Roman Emperor's, from flags book of Jacob Köbel (1545).