Complex sentence: He was sworn in as Lehendakari at the funeral of Aguirre in 1960, but unlike his predecessor, he lacked a charisma enabling to garner the consensus of different political forces around him.
Split into simpler sentences: He was sworn in as Lehendakari at the funeral of Aguirre in 1960. Unlike his predecessor, he lacked a charisma enabling to garner the consensus of different political forces around him.