However, Eberstein warned Governor Compagny (or Champagny) of Antwerp, and together, they improvised defences against the Spanish. On 3 November, Compagny let a force of 6,000 Walloon troops under the Marquis of Havré into the city. That was a risk because these troops were not very trustworthy. Some 10,000 civilians also helped to raise improvised defences against the Citadel. D'Avila had also prepared his attack and contacted other Spanish mutinous troops in Aalst, Lier, Breda and Maastricht, which converged on the city.