I came across an interesting article in a paper and pass the gist of it on in case it might be of interest.
If you thought that when your spouse died, you would get part of their pension then think again. It depends on the specific rules of the pension scheme. Some (as was the case in the article) only make this payable if the spouse was already taking the pension at time of death. If they weren't then you will get nothing from their pension scheme.