Yes, she does. Her sister is Yelena Belova.
Sure. Black Widow's powers in the comics include being a master of martial arts, having peak human physical conditioning, and expertise in espionage. Her skills and abilities make her a formidable hero.
Yes, Black Widow does die in some comic storylines.
Yes, Black Widow does die in some comic storylines.
Spider-Man doesn't seem to have a special liking for Black Widow comics. His own comic universe is so vast and engaging that he's occupied with that.
Yes, she does. But the circumstances and storylines around her death can vary depending on different comic arcs.
In the comics, Black Widow's death can vary depending on the storyline. Sometimes it's due to a final heroic sacrifice to save others.
No, she doesn't. At least not in the mainstream comic storylines that I'm familiar with.
Yes, she does. Sometimes she makes comebacks in various storylines.
Black Widow has had various romantic involvements in the comics, but she doesn't have a traditional marriage to one specific character.
Black Widow didn't have a child in the comic books. Her character was mainly involved in various missions and adventures rather than having a family with children.