Or at the very least, that is what the upper class was lead to believe. Could you blame them? His death was wildly convincing, and the thing was.
No one knew who would inherit Vladco and his fortune.
As far as they knew, Masters never had any heirs to speak of at all. Not even an illegitimate child, or a foster care. He doesn't even have relatives that the fortune and company could go to.
So, safe to say, they were quite looking forwards to what would happen to the company. Would it sink, or stay afloat?
Now, normally, Damian wouldn't have cared a single bit about what would happen. But seeing as he is forced to go to an event held at the very dead Vlad Masters' mansion, he thinks he should have the right to see what'll happen.
The company's various stockholders were all gathered together, as well as Lex Luthor and other rich upper-class individuals. He knows that Vlad and Lex didn't like each other very well, so he thinks that Lex Luthor may or may not be backing the biggest current stockholder so that he'll have a say in the man's company when they take over.
Honestly, the event was pretty boring. He thought there would be... more, happening. Considering the context of this event.
So, he leaves. He's really just exploring to stave off his boredom, but if he found Vlad Masters' secrets before his death, well. Might as well, really.
He comes upon a room filled wall to wall with merchandise that screamed Masters was a packers fan before his death. Quite the large one at that as well. He picked up one item just to take a look at it, it wasn't something he was too interested in, but it was sort of impressive.
He turned when he heard the door open behind him, and saw a girl that was probably around his age staring at him with concern.
The thing is, she wasn't dressed like a guest. Or even a maid. She was dressed like a poor person.
So obviously he thought she was breaking in to find things to steal and sell off.
"I'm telling dad you tried stealing his packers merch." And with that, the girl was off, and Damian found himself running after her.
But also, father? He genuinely considers who she was talking about, clearly it couldn't have been anyone participating in the event, so was he also another thief that wanted to steal from Masters?
What sort of thief reveals they have another roaming around where they're stealing from? And their blood relation at that?
He realized that they were running towards where all the guests were gathered, and Damian thought that this girl was either lost, or genuinely didn't know what she was doing.
"Dad! Some kid is trying to steal your merchandise!" Said the girl, slamming open the doors and causing the attention of everyone present to fall directly on her as she paused.
Damian couldn't see it, but he thinks she's quite stupefied in that moment, paused on her pause. It was completely, and utterly quiet for a moment as the guests stared at her, and she stared back.
However, the next moment. The very detailed coffin laying in the center of the room suddenly swung itself open with a great pillar of green fire that reached the ceiling, causing his attention to switch over to it.
He saw lines on the floor around the coffin, lines that he previously ignored as some kind of design choice.
Lines that were filled with a liquid none to dissimilar to Lazarous Water.
A hand reached out of the coffin. "WHO DARES TO TOUCH MY PRECIOUS MERCHANDISE!?" And from beyond the grave the previously dead now arisen body of Vlad Masters pulled himself out of his own coffin, with inhumane red eyes.
So. Damian came to two conclusions that night.
One, Vlad Masters may or may not have had ties with the League of Assassins in some way, leading to his now ressurection.
Two, Vlad Masters has a daughter that was extremely well hidden from basically everyone present at the gathering and, maybe even the world at large.