Cal. Prob. Code § 19326

Notwithstanding any other statute, funeral expenses and expenses of last illness, in the absence of specific provisions in a will or trust to the contrary, shall be charged against the deceased settlor’s probate estate and thereafter, against the deceased settlor’s share of the trust and shall not be allocated to or charged against, the community share of the surviving spouse, whether or not the surviving spouse is financially able to pay the expenses and whether or not the surviving spouse or any other person is also liable for the expenses.