 Bertha and their young son, Conrad, accompanied Henry on his dangerous journey.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.Adelaide then accompanied Henry and Bertha on the long and dangerous Walk to Canossa, where from 25 January 1077, Henry and Bertha underwent penance barefoot for three days outside in the cold and begged Gregory VII's forgiveness.