Encouraged by Lady Stuart-Wortley-Mackenzie, Le Vert embarked on a tour of Europe in 1853 with her husband and oldest daughter. While there she visited the courts of the United Kingdom, Spain, and Italy. She was presented to Queen Victoria of the United Kingdom by Lady Stuart-Wortley-Mackenzie. In 1855, she was appointed by the Governor of Alabama, John A. Winston, to serve as the state's commissioner to the Exposition Universelle in Paris. She was the Exposition's only female commissioner. While on this European trip she met Napoleon III and Pope Pius IX.