curprev09:0009:00, 25 May 2019 Surtsicnatalkcontribs 14,800 bytes−1,562 This type of chart is not found in any biography of the subject nor in any publication specializing the subject. No biographer or historian writing about him has found it necessary to mention his great-great-grandmothers. This means the chart is gratuitous and a prime example of WP:OR.undo