Complex sentence: The decoration was further enriched in 18th and 19th centuries with paintings by various artists; in the halls hardwood furniture and several collections of tapestries, clocks, lamps and sculptures were installed.
Split into simpler sentences: The decoration was further enriched in 18th and 19th centuries with paintings of various artists. Also in the halls hardwood furniture and several collections of tapestries, clocks, lamps and sculptures were installed.