When Cyril Gilbert Leonard was born on 10 October 1912, in Southampton, Hampshire, England, United Kingdom, his father, Gilbert George Joseph Leonard, was 33 and his mother, Mabel Emma Hackett, was 30. He died in 1943, in Bucklow Hill, Cheshire, England, United Kingdom, at the age of 31.
English; French (Léonard); Walloon (mainly Léonard): from a personal name composed of the ancient Germanic elements leo ‘lion’ (a late addition to the vocabulary of ancient Germanic name elements, taken from Latin) + hard ‘hardy, brave, strong’, which was taken to England by the Normans. A Christian saint of this name, who is supposed to have lived in the 6th century, but about whom nothing is known except for a largely fictional life dating from half a millennium later, was popular throughout Europe in the early Middle Ages and was regarded as the patron of peasants and horses. In North America, the English form of the surname has absorbed cognates from other languages, e.g. Italian Leonardo , Polish, Slovenian, etc. Lenart or Lenard , and probably also their derivatives. Compare Larned , Learned , and Yenor .
Irish (Fermanagh): adopted as an English equivalent of Gaelic Mac Giolla Fhionáin or of Langan .
German: variant of Leonhard , cognate with 1 above.