My twin brother died traumatically and unexpectedly two years ago, around the same time my 73 year old Mom was diagnosed with Alzheimer's. She's now at a moderate to severe stage and has forgotten that he's dead. She asked me today to go see him in the dining room of her Memory Care residence, I was shooken up, but we walked over and she pointed to an empty chair. I immediately said "oh we must've missed him, I'll go see him later". She said "yes I know he'd like that"... Now I realize I should've let her talk about him and ask her what they talk about and see what she says. I don't bring him up with her because I don't want to make her sad if she remembers he's died. Any experience with this? I was extremely close to him and she adored him. (we were the only two kids she had) My dad died many years ago. It's been an extremely tough two years but we're finally settled into a nice peace.