Wikipedia:Articles for deletion/Walter de Washington
There's an entry for the subject in ''Burke's Presidential Families of the United States of America'' by Hugh Massingberd and this contains dates and details such as the subject's wife.  Naturally, accounts of such an ancient knight are sketchy but, as there is clearly interest and documentation, deletion is not appropriate.  The worst case would be merger to Washington family,  Our policy  applies, "''If editing can improve the page, this should be done rather than deleting the page
— user:Andrew, 10:57, 1 January 2021 (UTC)
Stance: keep
Cited policy: WP:ATD (Wikipedia:Deletion policy)