My understanding is that death continues to end entitlement (as with any change that ends entitlement) from the Monday after the change (unless person who died was a hostel dweller!). A18/05 says this & is confirmed in A8/06.
Further to this, I queried end dates (for moves out of area/deaths etc.) in relation to calc of weekly rent – wasn’t sure if the phrase “appropriate number of days” was supposed to relate to days liable in final week (as old Reg 69(5)(c) used to for non-wkly tenancies).
DWP response states clearly:
” Yes I can confirm that a change that ends entitlement is effective from the first day of the following benefit week except for hostel dwellers with a daily liability ”
(Appropriate number of days is used where awarding beyond the following Monday under unavoidable liability rules.)
Hope this helps! 8)