The Shadow of the Erdtree Remembrance bosses are those that drop...
well, remembrances, the special kinds of consumables that can be redeemed for one of several options, or consumed for Runes - though frankly, you should never, ever use up a Remembrance for Runes, as that's just a waste of a unique item. Remembrances you do have can be brought back to the Roundtable Hold in the main game of Elden Ring and given to Enia, sat by the Two Fingers, where you'll get to choose which of the Remembrances rewards you take. Below, we'll cover all the remembrance bosses in Shadow of the Erdtree, where to find them, and what the rewards for each remembrance are.
The Remembrance Bosses overlap somewhat with all the , though not completely. Of the seven mandatory bosses in the critical path, five of them drop remembrances - and there's another five optional encounters around the Realm of Shadow that also drop them. You can use the map in conjunction with the list below to find what you need.
It's the first five of these bosses that are on the critical path, and all the others are wholly optional - in fact, some are actively quite hard to find and reach even if you're looking for them, but this shouldn't be too surprising to anybody who understands Elden Ring and at this point. Below, we'll give some more info on all the Remembrances, where they're found and what you can get from them..