In 1827 and 1828 Amerling stayed in London, and he met the portrait painter Sir Thomas Lawrence, whose work was to be a strong influence on Amerling's painting during the next two decades. Amerling also travelled to Paris and Rome but was recalled to Vienna on an official commission to paint a life-size portrait of the emperor Francis I of Austria (Vienna, Ksthist. Mus.). With this work, Amerling became the most sought-after portrait painter in Vienna, a position he was to retain for about 15 years.
