Section 1721. Notice of petition

Notice of petition shall be given, in the
  discretion of the court, to such persons and in such manner as the court
  may direct. If the proceeding affects the  interest  of  an  incompetent
  person  or  of  a  conservatee,  notice  shall  be  given  to either the
  committee of property  or  the  conservator  of  property,  and  if  the
  incompetent  person  or  conservatee  has  been  committed  to  a  state
  institution and is an inmate thereof, also to the  attorney-general  and
  to  the  director  having  jurisdiction  over  the institution where the
  incompetent or conservatee is confined. If the  proceeding  affects  the
  interest  of an infant who has a general or testamentary guardian of the
  property, notice shall be given to such guardian.