Complex sentence: Despite forcing the abbot to apply the revenues to debt repayment and to sell many of the estates, he was only partly successful, and ten years later the abbey was again appealing to the king for help with a disastrous financial situation.
Split into simpler sentences: Despite forcing the abbot to apply revenues to debt repayment and to sell many of the estates, he was only partly successful. Ten years later the abbey was again appealing to the king for help with a disastrous financial situation.