Auto-translated
There was only one own same Krodo, and Alamar too (the one in HoMM1 is a descendant of the one in M&M1, and the third is either a relative of Alamar from HoMM1 or simply shares the same name). There are two Sandros, and two Crag Hacks as well. It's all quite clear and logical;). The events of the SoD campaign, where Lord Haart is mentioned, take place in 1163-64, while the War of Succession ended in 1154. Everything is fine:) Aside from Castor and Sandro from Xyn, I find Sheltem charismatic. And, by the way, Archibald's mental anguish doesn't even compare to the mental and other torments of Roland.
Added after 1 minute
Alexey, which do you think is better—to spend over 10 years as an undead trapped in stone, passing by like a moment, or to sit in a cell in the tower among rats and spiders?