World's memory is very whimsical now and then.
Being much implicated with the King of France, who with the Pope was his chief stay in these final Anti-Ludwig operations, Johann--in 1346, Pfaffen-Kaiser Karl just set on foot--had led his chivalry into France, to help against the English Edwards, who were then very intrusive there.
Johann was blind, but he had good ideas in war.

At the Battle of Crecy, 24th August, 1346, he advised we know not what; but he actually fought, though stone-blind.

"Tied his bridle to that of the Knight next him; and charged in,"-- like an old blind war-horse kindling madly at the sound of the trumpet;--and was there, by some English lance or yew, laid low.

They found him on that field of carnage (field of honor, too, in a sort); his old blind face looking, very blindly, to the stars: on his shield was blazoned a Plume of three ostrich-feathers with "ICH DIEN (I serve)" written under:--with which emblem every English reader is familiar ever since! This Editor himself, in very tender years, noticed it on the Britannic Majesty's war-drums; and had to inquire of children of a larger growth what the meaning might be.
That is all I had to say of King Johann and his "ICH DIEN." Of the Luxemburg Kaisers (four in number, two sons of Karl still to come); who, except him of the sacramental wine, with "ICH DIEN" for son, are good for little; and deserve no memory from mankind except as they may stick, not easily extricable, to the history of nobler men:--of them also I could wish to be silent, but must not.

Must at least explain how they came in, as "Luxemburg Kurfursts" in Brandenburg; and how they went out, leaving Brandenburg not annihilated, but very near it.
END OF RESUSCITATED WALDEMAR; KURFURST LUDWIG SELLS OUT.
Imaginary Waldemar being still busy in Brandenburg, it was natural for Kaiser Karl to find him genuine, and keep up that goblin-dance round poor Kurfurst Ludwig, the late Kaiser's son, by no means a lover of Karl's.