Complex sentence: Buller had arranged to resign in a few days but, during a game of piquet at his house in Bedford Square, he was stricken again and died during the night of 4/5 June 1800.
Split into simpler sentences: Buller had arranged to resign in a few days but, during a game of piquet at his house in Bedford Square, he was stricken again. He died during the night of 4/5 June 1800.