Complex sentence: On August 19 1946, he was sent to a British military hospital in Naples where he was interviewed by Melchior Wańkowicz, who made Sucharski the main protagonist in his 1948 short story "Westerplatte".
Split into simpler sentences: On August 19 of the same year he was sent to a British military hospital in Naples. There he was interviewed by Melchior Wańkowicz, who made him the main protagonist of his 1948 short story "Westerplatte".