In 2000, a group of Belgian taxpayers brought suit, demanding that the government rescind an agreement dating back to just after the battle under which the Duke of Wellington was given the rights to 2,600 acres around the battlefield. The lands were bringing in about $160,000 annually for the Wellington family, and the taxpayers argued it was time to end the arrangement. The case stagnated until 2009, when the finance minister, Didier Reynders, told Parliament that the government had no intention of backing out of its commitment, which was anchored in the 1839 Treaty of London guaranteeing the independence of Belgium.