923: Soissons and the Capture of Charles

After the 922 deposition, the crisis is not resolved by a vote: it is also settled by arms. In 923, civil war reaches a climax around Soissons.

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🛡️ A decisive battle

Charles crosses the Meuse, marches on Attigny, then heads toward Soissons. Reaching the Aisne on 14 June 923, he gives battle the next day.

The battle does not solve everything, but it overturns political balance:

• Robert I is killed during a charge;
• reinforcements led by Herbert swing the fight;
• the Robertians acclaim Rudolph of Burgundy as new king and war leader.

Charles withdraws, then seeks support from Rollo and other Viking leaders. The move shocks part of the aristocracy and accelerates rallying to Rudolph, crowned at Saint‑Médard of Soissons on 13 July 923.

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⛓️ 17 July 923: capture, captivity, death (929)

Charles is then lured into an ambush and captured on 17 July 923 by Herbert II of Vermandois, eager to carve out a principality between the Seine and Flanders. Separated from his companions, the king is first imprisoned at Château‑Thierry for several years, then transferred to Péronne.

His second wife, Eadgifu of Wessex, takes refuge in England with their son, the future Louis IV. Herbert then tries to use Charles as a political instrument: supervised outings, negotiations, demonstrations of allegiance. Despite these manoeuvres, Charles remains a prisoner of the balance of forces.

He dies on 7 October 929 at Péronne, after a long captivity.

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🧠 Key takeaways

• 923 prolongs the crisis opened in 922.
• Robert’s death at Soissons opens the way to Rudolph of Burgundy.
• Charles’s capture (17 July) locks the political outcome.
• Kingship becomes durably dependent on princely coalitions.