Complex sentence: His closest friend and fellow Privy Councillor was Sir Henry Jerningham, and he was also connected to the ancient family of Beaupre, by his relative Catherine Bedingfield, who married Edmonde Beaupre of Beaupre Hall, Outwell/Upwell, Norfolk.
Split into simpler sentences: His closest friend and fellow Privy Councillor was Sir Henry Jerningham. His family was closely connected to the ancient family of Beaupre, by his relative Catherine Bedingfield, who married Edmonde Beaupre of Beaupre Hall, Outwell/Upwell, Norfolk.