Serguéi Ivanov has passed away, a figure closely associated with Vladímir Putin's rise to power. The two men shared a similar background, having been born in the same city and at the same time. They met when they were young, forming a connection that would last for many years.

Further information about Serguéi Ivanov's life and relationship with Putin is available from El País. Details about his role in Putin's ascent to power and his own significance are also reported in the source. For a more in-depth understanding of Serguéi Ivanov's life and legacy, readers can refer to the original article in El País.