Complex sentence: The first one was composed of soldiers from Slavonia commanded by Franjo Berislavić, the second section was under the command of Ivan Frankopan Cetinski, while the third one was commanded by Nikola VI Frankopan and Bernardin Frankopan.
Split into simpler sentences: The first one was composed of soldiers from Slavonia commanded by Franjo Berislavić. The second group was under the command of Ivan Frankopan Cetinski, while the third one was commanded by Nikola VI Frankopan and Bernardin Frankopan.