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William Tennant was a Scottish scholar and poet. Tennant was a student at the University of St Andrews and in his leisure time he mastered Hebrew as well as German and Italian.
His study of Italian verse bore fruit in the mock-heroic poem of Anster Fair (1812), which gave an amusing account of the marriage of "Maggie Lauder," the heroine of the popular Scottish ballad. It was written in the ottava rima adopted a few years later by "the ingenious brothers Whistlecraft" (John Hookham Frere), and turned to such brilliant account by Byron in Don Juan. The poem, unhackneyed in form, full of fantastic classical allusions applied to the simple story, and brimming over with humour, had an immediate success. It is said to be the first use of this Italian style in Britain.