Child(ren):
https://www.geni.com/people/Sir-John-de-Haverington-1st-Baron-Harington/6000000004018529980?through=6000000003827878193
https://www.geni.com/people/Sir-John-de-Haverington-1st-Baron-Harington/6000000004018529980?through=6000000003827878193
https://en.wikipedia.org/wiki/John_Harington,_1st_Baron_Harington
The data shown has no sources.