Complex sentence: Afterwards, a plot surrounding the Grand Duchess Elisabeth Petrovna against the regent was a complete success: in 1741 Anna Leopoldovna, her son Ivan and the rest of their family were exiled to Riga.
Split into simpler sentences: Afterwards, a plot surrounding the Grand Duchess Elisabeth Petrovna against the regent was a complete success. In 1741, Anna Leopoldovna, her son Ivan and the rest of their family were exiled to Riga.