Complex sentence: The Hanoverians maintained the strongest links with Kew, in particular Princess Augusta who founded the botanic gardens and her husband Frederick, Prince of Wales who resided at the White House in Kew and commissioned the building of the first substantial greenhouse at Kew.
Split into simpler sentences: The Hanoverians maintained the strongest links with Kew, in particular Princess Augusta who founded the botanic gardens and her husband Frederick, Prince of Wales who lived at the White House in Kew. Frederick commissioned the building of the first substantial greenhouse at Kew.