Note 49 — Chapter XII · THE INVASION OF SILESIA.
Reading edition
Colonel Keyserling was a Courlander of good family. He had been officially named as “Companion” of the Crown Prince in his youthful days. Frederick entitled him Cæsarion, and ever regarded him as one of the choicest of his friends. He was a man of very eccentric manners, but warm-hearted and exceedingly companionable.