Complex sentence: Despite Stella's sabotage, intending to show Glenbogle in a dim light at the Midsummer's Ball, the bank's chair returns control of the estate to Archie, who finally realizes he's in love with his faithful friend Lexie, and proposes.
Split into simpler sentences: Despite Stella's sabotage, intending to show Glenbogle in a dim light at the Midsummer's Ball, the bank's chairman returns control of the estate to Archie. Archie finally realizes he's in love with his faithful friend Lexie, and proposes.