Eleagnus ebbingei

I suspect you are correct. That is a shame.
The left hand stem also looks greyer, if you cut a twig are there dark rings in the wood. I suspect it may be fungal failing that bacterial.

Shirley, although I can't see the full size of the shrub, the main stems look quite thick so it could be that the shrub has come to the end of it's life.

I had a similar problem with the Ceanothus that we inherited when we moved here. It was such a beautiful tree but flowered less and less each year until it was mostly twiggy branches. Sadly, we decided it had come to the end of it's life so it had to go. However, it did have an attractive branching trunk which looked good against the fence so we've left that for a clematis to climb up. Perhaps you could do something similar?

It does hurt, though, doesn't it, when you have to say goodbye to a cherished plant?

it does look unwell. Time for a removal by the looks of it. sad but an new planting opportunity.

I posted a blog yesterday which included a photo of the poorly Eleagnus, today there is very little of it left standing.

There was a lovely Ceanothus at the far end of this border for many years, but the trunk started 'seeping' a liquid so that had to go. I really hope it's not something in the soil, but doubt it as everything else seems fine, phew!