Solomon's three cousins—Géza and his brothers—had returned after the German troops had been withdrawn from Hungary.

They had arrived with Polish reinforcements and Solomon sought refuge in the fortress of Moson at the western border of his kingdom.

After the Hungarian prelates began to mediate between them in order to avoid a new civil war, Solomon and his cousins finally reach an agreement, which is signed in Győr on January 20, 1064.

Géza and his brothers acknowledge Solomon as lawful king, and Solomon grants them their father's one-time ducatus.

In token of their reconciliation, Duke Géza puts a crown on Solomon's head in the cathedral of Pécs on Easter Sunday.

However, their relationship still remains tense: when the cathedral burns down during the next night, they initially accuse each other of arson.