While Shelley produced many of his most important works in self-imposed exile from Great Britain, various locales in England, Ireland, Scotland, and Wales played an important role in his personal and poetic development. Attending to Shelley’s experiences across Great Britain and Ireland, and to local sociopolitical dynamics in the places where he lived and worked, this chapter traces some formative influences upon his later poems and essays. It finds that Shelley’s political and aesthetic maturation owed much to his geographical and institutional surroundings and illuminates how these surroundings contributed to his alienation, radicalisation, and visionary zeal.