Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
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Question: 1700 to 1900 By the early seventeenth century small scale brick and tile manufacture was flourishing and during this time parcels of common land were allocated for house building and small businesses.

Answer: By the early 1600s, brick and tile were being made on a small scale. Parcels of land were set aside for building houses and small businesses.

Question: Visitors come to see the gardens in the palace grounds, the exotic birds which roam freely in the grounds, Moot Hill (which is in the grounds), and the palace.

Answer: Visitors come to see the gardens, the exotic birds, Moot Hill, the palace and its grounds.

Question: In 911, French King Charles the Simple was able to make an agreement with the Viking warleader Rollo, a chieftain of disputed Norwegian or Danish origins.

Answer:
In 911, French King Charles the Simple made a deal with Viking war leader Rollo (chieftain of argued Norwegian/Danish birth).