The Prodigy Super Hero Damien Wayne

Damian was trained by the League of Assassins. The League of Assassins is a secret organization known for their deadly training and expertise in assassinations. They have trained numerous individuals to become highly skilled assassins, and Damian is one of them. Shield, Hydra, and the Avengers are all different organizations with their own purposes and training methods, but none of them trained Damian.

In the comic, Damian's father is Bruce Wayne. Bruce Wayne is also known as Batman, a superhero in the DC Comics universe. Damian Wayne is the son of Bruce Wayne and Talia al Ghul, making Bruce Wayne his biological father. Damian Wayne eventually becomes the fifth Robin, working alongside Batman to fight crime in Gotham City.

Damian's grandfather is Ra's al Ghul. This is evident from the information provided in the question.

Damian Wayne's mother in the comic series is Talia al Ghul. Talia is the daughter of Ra's al Ghul and a love interest of Batman. She is a skilled fighter and a member of the League of Assassins. Talia and Batman have a complicated relationship, and their son Damian is a result of their union. Damian Wayne is also known as Robin and has appeared in various Batman comics and adaptations.

In the comic book "Batman and Son," written by Grant Morrison in 2006, the character Damian Wayne is introduced as Robin. This issue marks the first appearance of Damian Wayne as Batman's son and his subsequent transformation into the new Robin. Grant Morrison's storyline explores the complex relationship between Batman and his newfound son, Damian, as they navigate the challenges of crime-fighting together.

In 2013's Batman, Inc #8, the character who kills Damian is the Heretic. The Heretic is a genetically engineered assassin and the main antagonist in the Batman, Incorporated storyline. He is a clone of Damian Wayne, who is Batman's son, and ultimately kills Damian in a brutal battle. This event has significant consequences for the Batman storyline and the character development of Batman and his allies.

When Damian assumes the role of Robin, he is 10 years old.

Damian Wayne assumes the character of Robin when accompanying Batman. Robin is Batman's trusted sidekick and has been portrayed by various characters throughout the Batman comic book series. Damian Wayne, the son of Bruce Wayne and Talia al Ghul, takes on the mantle of Robin and becomes Batman's partner in crime-fighting. He is known for his skills in combat and his strong-willed personality, making him a valuable ally to Batman in their missions to protect Gotham City.

The correct answer is 4 because the question is asking how many Robins were there before Damian. Since Damian is a Robin himself, he is not included in the count. Therefore, there were four Robins before Damian.

In Batman and Robin Volume 2, Batman resurrects Damian.