Complex sentence: W. E. D. Stokes had persuaded his father, James Stokes, to pay for Edward Stokes's defence at his retrial, however, W. E. D. and his cousin Edward became bitter enemies in later years.
Split into simpler sentences: W. E. D. Stokes had persuaded his father, James Stokes, to contribute towards Edward Stokes's defence costs. Despite this, W. E. D. and his cousin Edward became bitter enemies in later years.