Complex sentence: Lazarević besieged Scutari, probably in June 1422, and for a year, it seemed that Venice would have lost their possessions, however, supported by some local Albanians, Venice managed to break the siege in December 1422.
Split into simpler sentences: Lazarević besieged Scutari, probably in June 1422, and for a year, it seemed that Venice would have lost their possessions. Supported by some local Albanians, Venice managed to break the siege in December 1422.