A book my mum had in the 90s.
Starts in modern times with an elderly lady who is having one last walk around her garden before her house is sold. Then the story flashes back in time to the people (inc one named Fritha?) who owned that plot of land 1000ish years ago and who cleared the woodland to create the garden. It follows their lives for a chapter then back to the present. It then flashes back in time to follow the story of the next generation of occupiers of the land, each chapter then jumping forwards in time. One chapter includes a girl who lives in a convent on the site when the plague arrives in the village, I think she’s called Agnes.
I really want to read it again as it reminds me of my DM who has now passed away, but I just can’t remember the title.