Duke Magnus of Saxony and Count Hermann attempt to betray King Rudolf of Rheinfelden by uniting their troups with those of King Henry IV. prior to the battle at Flarchheim, but are found out, attacked and routed.
Magnus vero dux ac patruus eius Herimannus comes, qui in precedenti be Saxonico captus ac Heinrico traditus, iam ab illo pro fidei conditionei et promissione, quam ipse ac dux predictus sibi iuraverant, relaxatus ac liberatus est, fidem et auxilium, quam ipsi iam antea regi R. iureiurando contra omnes sibi adversantes confirmaverunt, perfidi plurimum infringentes, collectis omnibus quos poterant, addere se fraudulenter ante inceptum bellum predicto tyranno pertemptabant; sed a quibusdam Saxonum primatibus illorum perfidiam explorantibus mox repulsi ac refugati, vix domum ab eis salvi se proripiebant.
Translation :
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Edition :
I. S. Robinson: Bertholds und Bernolds Chroniken (FSGA 14), Darmstadt, 20-277.