Complex sentence: Although Jupp believed he was of Belgian stock for most of his life, having been descended from sixteenth century Huguenot immigrants, while creating a programme for BBC Radio 4, he discovered his roots actually lay in Sussex.
Split into simpler sentences: Although Jupp believed he was of Belgian stock for most of his life, having been descended from sixteenth century Huguenot immigrants. While creating a programme for BBC Radio 4, he discovered his roots actually lay in Sussex.