(a) The proper county for commencement of a proceeding pursuant to this division is either of the following:
- (1) In the case of a living trust, the county where the principal place of administration of the trust is located.
- (2) In the case of a testamentary trust, either the county where the decedent’s estate is administered or where the principal place of administration of the trust is located.
- (b) If a living trust has no trustee, the proper county for commencement of a proceeding for appointing a trustee is the county where the trust property, or some portion of the trust property, is located.
- (c) Except as otherwise provided in subdivisions (a) and (b), the proper county for commencement of a proceeding pursuant to this division is determined by the rules applicable to civil actions generally.