The California Affidavit — Death of Trustee, is a legal document used to prove the death of a trustee and to transfer legal authority over a trust to the successor trustee in the state of California. This document is also used to officially inform the probate court of the death of a trustee. There are two types of California Affidavit — Death of Trustee: the Trustee's Affidavit of Death and the Successor Trustee's Affidavit of Death. The Trustee's Affidavit of Death must be signed by all the trustees of the trust, or by the executor of the deceased trustee's estate. This affidavit must include the name of the deceased trustee, the date of death, and the name of the successor trustee. The Successor Trustee's Affidavit of Death must be signed by the individual appointed to be the successor trustee. This affidavit must include the name of the deceased trustee, the date of death, and the name of the successor trustee. The Successor Trustee's Affidavit of Death also must include a statement that the successor trustee has agreed to serve as the trustee of the trust. Both affidavits must be notarized and filed with the probate court.