Complex sentence: Bocskai sent troops to Székely Land, ordering the punishment of the ringleaders, but his lieutenants overrode his instructions and pushed the rebellion with extreme cruelty during the "Bloody Carnival" of 1596.
Split into simpler sentences: Bocskai sent troops to Székely Land, ordering the punishment of the ringleaders. His lieutenants overrode his instructions and pushed the rebellion with extreme cruelty during the "Bloody Carnival" of 1596.