The Bernese army marched to the relief of Laupen, arriving in the afternoon of 21 June.
Rather than attempt an attack on the Freiburger siege lines, they drew up their army on a hill called the Bramberg, some 
3 km east-northeast of Laupen Castle, as a challenge to their enemies to come and fight.

The formation of the Bernese consisted of one or more haufen, deep bodies of infantry.
To one flank, probably the left, stood the troops of the Forest Cantons.
The arrival of the Bernese was noted by the Freiburgers and they rapidly armed and arrayed themselves for battle.
Late in the afternoon, they launched their attack.

The Freiburg force was led by their cavalry, followed by the larger body of infantry.
An unknown number of troops were left in the siege camp, to protect the equipment and prevent a sally by the 600 strong Bernese garrison.
The cavalry vanguard moved to threaten the Bernese, with a number of newly dubbed knights riding close to the Bernese lines waving their swords, but the Bernese force held its position.
When the Freiburg infantry formed up, the cavalry launched an assault which brought them into contact with the Forest Canton contingent, who rapidly formed an all-round defensive formation known as a hedgehog (Igel).
Away from this flank action, the Freiburger infantry advanced up the hill.
The Bernese threw forward a screen of crossbowmen and stone-throwers to harass this advance but these quickly fell back as the Freiburgers closed.
This seems to have caused a panic in the rear ranks of the Bernese army and a large number (up to 2,000) men fled into the forest behind the Bramberg.
Remarkably, the rest of the army held firm.
The two infantry lines then clashed.
Despite their numerical advantage, the Freiburgers were quickly broken and fled away towards Laupen, the flight being led by the feudal contingent from Vaud.
The contingent from Freiburg suffered particularly heavily, losing their Burgomeister and the City standard bearer.
Showing great control, a part of the Bernese army reordered itself and marched to relieve the Forest Cantons, who were still surrounded by the Freiburger's cavalry.
The action here was possibly the fiercest of the day, with the horsemen now fighting on two fronts themselves.
After a short bloody struggle, the cavalry were routed and suffered heavy casualties.
At least 80 nobles fell, including the Counts of Nidau, Valengin and Aarburg and the son of Louis II of Vaud.
The evening was now drawing on, which limited pursuit, but the Bernese forces marched into Laupen, where celebrations and services of thanksgiving for the victory were held.
The Bernese army marched to the relief of Laupen, arriving in the afternoon of 21 June. Rather than attempt an attack on the Freiburger siege lines, they drew up their army on a hill called the Bramberg, some 
3 km east-northeast of Laupen Castle, as a challenge to their enemies to come and fight. 
The formation of the Bernese consisted of one or more haufen, deep bodies of infantry. To one flank, probably the left, stood the troops of the Forest Cantons. The arrival of the Bernese was noted by the Freiburgers and they rapidly armed and arrayed themselves for battle. Late in the afternoon, they launched their attack.
The Freiburg force was led by their cavalry, followed by the larger body of infantry. An unknown number of troops were left in the siege camp, to protect the equipment and prevent a sally by the 600 strong Bernese garrison. The cavalry vanguard moved to threaten the Bernese, with a number of newly dubbed knights riding close to the Bernese lines waving their swords, but the Bernese force held its position. When the Freiburg infantry formed up, the cavalry launched an assault which brought them into contact with the Forest Canton contingent, who rapidly formed an all-round defensive formation known as a hedgehog (Igel). Away from this flank action, the Freiburger infantry advanced up the hill. The Bernese threw forward a screen of crossbowmen and stone-throwers to harass this advance but these quickly fell back as the Freiburgers closed. This seems to have caused a panic in the rear ranks of the Bernese army and a large number (up to 2,000) men fled into the forest behind the Bramberg. Remarkably, the rest of the army held firm. The two infantry lines then clashed. Despite their numerical advantage, the Freiburgers were quickly broken and fled away towards Laupen, the flight being led by the feudal contingent from Vaud. The contingent from Freiburg suffered particularly heavily, losing their Burgomeister and the City standard bearer. Showing great control, a part of the Bernese army reordered itself and marched to relieve the Forest Cantons, who were still surrounded by the Freiburger's cavalry. The action here was possibly the fiercest of the day, with the horsemen now fighting on two fronts themselves. After a short bloody struggle, the cavalry were routed and suffered heavy casualties. At least 80 nobles fell, including the Counts of Nidau, Valengin and Aarburg and the son of Louis II of Vaud. The evening was now drawing on, which limited pursuit, but the Bernese forces marched into Laupen, where celebrations and services of thanksgiving for the victory were held.
Battle of Laupen