He was the eldest son of a Dublin silk mercer, and came from a Catholic family which had in the 17th century been granted extensive estates, possibly in County Offaly or County Laois, and their own coat of arms, but had suffered for their religion and since been dispossessed. In his youth he learned to paint landscapes under Gaspare Gabrielli, and miniature portraits at the Royal Dublin Society's drawing school under John Comerfield. He won a gold medal in 1805. He was commissioned to paint equestrian portraits of the Marquess of Sligo and Lord Talbot, the Irish viceroy, and in 1822 he produced six prints entitled The Life of a Racehorse. That year he moved to London with his wife, Marianna Conan. His painting Turning out the Stag brought him recognition when it was exhibited at the Royal