Complex sentence: She was granted permission from the abbess to live as a hermit in January 1985, where she spent the years 1985 to 2004 in Pontrilas in Hertfordshire, along with her dog and cat, while she continued to work heavily.
Split into simpler sentences: She was granted permission from the abbess to live as a hermit in January 1985. Boulding spent the years of 1985 to 2004 in Pontrilas in Hertfordshire where she lived with her dog and cat while also continuing to work heavily.