In terms of Charles I, or Thomas More or others whom faced death bravely, I feel this is a slightly different issue, though considering that fact makes the wording in my last post seem odd. I do have some concern about dying, and much less for death. Dying is something I will actually do someday, and I do have a care for how I go about doing it (or, indeed, how it is done to me). Naturally facing it with grace and dignity would be preferential, and would benefit whatever legacy I left behind (which, of course, is probably the only thing that would still exist of me).
Death, in relation to an individual, is not something I will "do," it's simply a state where I am not (or so I would guess). The concept of this state where I am not, the absence of me, is really the simplest, basic, most non-complex thing in the world and, strangely, is totally without effect to me. In some ways, it's the opposite of something that actually effects me as a being. It's there, it is what it is (unless it isn't, which I can not determine in any way), one day I'll stumble across it and I don't see any real point in fussing about it.