High Quality Content by WIKIPEDIA articles! Migoli (foaled 1944 in Ireland) was a Thoroughbred racehorse bred and raced by the Aga Khan III. Trained in England by Frank Butters, Migoli`s win in the 1948 Prix de l`Arc de Triomphe was the first for an English-trained horse since 1923 and there would not be another until 1971.