Baron Strucker came from a line of Prussian noblemen who were all milatary leaders, and was recruited by the Nazi party in the 1930s. Strucker rose through the ranks and became leader of the Death's-Head Squadron and the Blitzkrieg Squad. Strucker fought Nick Fury, Captain America, The Invaders and several other wartime heroes, losing every time. Adolf Hitler was angry by Strucker's many losses and ordered the baron's death. Finding an ally in the Red Skull, Strucker was sent to eastern Asia to build a power base; this eventually led to the creation of the international terrorist organization Hydra. Strucker eventually discovered a method of retarding his aging, and survived to the modern day relatively youthful. While holding the world hostage with his Death's-Head Spores, Strucker was killed in battle with Fury, who had also remained young and had become the head of the internatonal espionage outfit SHIELD, Hydra's opposite number.
After Strucker's death Hydra continued to menace the free world and do battle with SHIELD and Captain America. In recent years Strucker returned, having been resurrected by Hydra. Strucker has two children, mutant twins Andrea and Andreas who are the heads of the criminal cartel Fenris, and a nephew named Werner. Strucker is physically potent; some of this strength may be a result of the same means that have kept him young. He sometimes wields the Satan Claw, a red gauntlet that increases the wearer's strength greatly and emits a lethal electrical discharge. He wears a monocle over his scarred right eye(although he recently appeard scarless and wearing small round glasses,its not 100% certain this "supreme hydra" is baron strucker).
Strucker was instrumental in Hydra's earliest raids on war plants to supply their troops, and finally confronted the Supreme Hydra, claiming that as the organization's true mastermind, he should be Hydra's leader.
Strucker also lived on in the form of several different android LMDs (Life Model Decoy) based on his mind; one was activated on Hydra Island after Strucker's death and believed itself to be the true Strucker, finally meeting its doom battling Captain America, Fury, and the one-time Howling Commandos.
Strucker married again to a woman named Elsbeth, but she had little regard for him, and was taken instead by his mutant bodyguard the Gorgon.