Complex sentence: In 1849 he and Manara were among the defender of the Roman Republic and, fighting against the French troops besieging the Janiculum, Emilio was seriously wounded on 29 June and died two days latter of his wounds.
Split into simpler sentences: In 1849 he and Manara were among the defender of the Roman Republic. While battling against the French troops besieging the Janiculum, Morosini was seriously wounded on 29 June and died two days latter of his wounds.