Their relationship began professionally after Spencer reviewed Jarman’s 2021 book River Kings. They later worked together on digs and co-hosted a history podcast, and made their romance public in October 2024. In a joint statement they described their bond growing from friendship to deep love, with laughter at its heart.
This is Spencer’s fourth marriage; his divorce from Countess Karen Spencer was finalized in December 2025. The split involved legal claims about disclosure of Jarman’s multiple sclerosis diagnosis, a matter that was contested and settled in late 2025. Both Spencer and Jarman have children from prior relationships.