Complex sentence: The regency ruling in underage Milan's name was a three-man council headed by Blaznavac, with statesman and historian Jovan Ristić, and Jovan Gavrilović, politician and historian hailing from a wealthy merchant family rounding out the trio.
Split into simpler sentences: The regency ruling in underage Milan's name was a three-man council headed by Blaznavac. Statesman and historian Jovan Ristić, and Jovan Gavrilović, politician and historian hailing from a wealthy merchant family rounded out the trio.