Mayn (Main), Lord of Harescombe is your 27th great grandfather.
You
→ David Ronald Davis
your father → Raymond Earl Davis
his father → Ralph Raymond Davis
his father → Cassie A Davis
his mother → Amos L Jackson
her father → Andrew Jackson, Jr
his father → Phebe Jackson
his mother → Henry Jones
her father → Susannah Jones
his mother → Benjamin Sweet
her father → Richard Sweet
his father → John Sweet, of Newport
his father → Mary Holliman
his mother → Mary Westcott
her mother → Margery Stukely
her mother → Mary Arscott
her mother → Frances Plantagenet
her mother → Arthur Plantagenet, 1st Viscount Lisle
her father → Edward IV of England
his father → Cecily Neville, Duchess of York
his mother → Ralph Neville, 1st Earl of Westmorland, 4th Baron Neville de Raby
her father → John de Neville, 3rd Baron Neville de Raby
his father → Alice de Audley, Baroness Neville
his mother → Isolde de Audley
her mother → Roger le Rous
her father → Henry le Rous, of Harescombe
his father → Roger fitz Alan, Lord of Harescombe
his father → Alan fitz Mayn, Lord of Harescombe
his father → Mayn (Main), Lord of Harescombe
his father