And here are the last flags of the ex-Saxon regiments. I'll be taking a break from Prussian flags for a while now!
Formerly Saxon Regiment Prinz Maximilian Infantry, after the surrender at Pirna in October 1756 this regiment became Prussian IR59, and was made the garrison of Wittenberg.
Its commander from November 1756 to 1st August 1757 was nominally Prince Friedrich Wilhelm von Preussen but the actual commander was Lieutenant-Colonel von Plotho.
From April to June 1757 the regiment was with the Prussian army which invaded Bohemia and was then made the garrison of Leitmeritz. On August 1st, after many desertions, the regiment was disbanded at Pirna and the surviving men distributed amongst other Prussian regiments.
[Again the short account is taken from details in Kronoskaf.]
Once again here are two versions of the flags, the ones below with the new improved eagle.
And this was the uniform in 1756: