A fiduciary owes a duty to disclose material facts to the beneficiary. The beneficiary is under no duty to investigate whether the fiduciary has told the truth or disclosed all the material facts. Hence, when a conservatee moves to set aside an order approving the conservator’s accounting on the ground of misrepresentations in the conservator’s accounting and petition for approval, the conservatee need not show that he could not have discovered the true facts before the accounting was approved. Instead, the conservatee need only show that he was not actually aware before entry of the order of facts which would make a reasonably prudent person suspicious of wrongdoing by the conservator. The opinion disagrees with Knox v. Dean (2012) 205 Cal.App.4th 417 which held a conservatee has a duty to investigate the conservator’s accounting despite lack of actual knowledge of suspicious facts