I was researching the Pataria movement in Milan that began around 1045. I found mention of a compromise of Milan in 1044. This got me interested in these earlier events. The only information that I can find is in this link:
1041 The people of Milan, headed by Lanzo, drive the nobles out of Milan
1044 Peace restored in Milan
What are the details of this conflict? Was prince-bishop Aribert involved? Is it connected to relations with Germany, like Conrad's siege of Milan in 1039?
Added 4/11: Semipaiscuba has provided a source, but it leaves me with questions. The events were the result of a revolt in 1035 that compelled Conrad to grant the "lesser nobles" the same status as the nobles. It appears that these lesser nobles kicked out the greater nobles in 1041. What I'm confused about is that it begins to describe mercantile and artisinal groups later on in the conflict. I think the explanation for this is on wikipedia, but I would like more information about their relationship, if both comprised the rebels.
In the political arena of Italy, power was disputed between the great territorial magnates— the capitanei— with their vassal captains and the lesser nobility— the valvassores— allied with the burghers of the Italian communes. -Aribert Wikipedia
I'd like to place the events into context with the preceding and later periods if they are related. Did it cause the Holy Roman Emperor to lose influence? Did it create the political situation that led to the Pataria movement?