[5] At an assembly at Worms, he "explained publicly (before the princes), that his relationship with his wife was not good; for a long time he had deceived others, but now he did not want to do so any longer.

And nobody knowing any objection to raise, and his wife being an obstacle to a second marriage ceremony, he then swore that she was as he received her, unstained and her virginity intact.

[9] After Henry's victory against the Saxons, he arranged for an Imperial Diet at Goslar on Christmas Day 1075 to swear an oath recognising Conrad as his successor.

[10] During the fierce Investiture Controversy, Bertha's husband was excommunicated by Pope Gregory VII at the Lenten synod in Rome in 1076.

In October, the German princes took the occasion and swore an oath at Trebur that they would no longer recognise Henry as king unless this excommunication was lifted.

[11] While the South German princes supporting his rival Rudolf of Rheinfelden blocked his path, Henry hoped to travel through one of the Alpine passes controlled by his mother-in-law, but Adelaide extracted a high price before allowing him to do this.

[13] After the forces of Henry IV had besieged and occupied Rome, he and Bertha were crowned emperor and empress on 31 March 1084 by Antipope Clement III.