I'm experimenting with posting some random bits of my genealogy research here.

I don't necessarily trust information that goes this far back, especially when it is not accompanied by reasonable sources. However, I record what I find, replacing it with more reliable info or more details as I find them. With more than 90,000 individuals in my family tree at this point, I generally pick one literally at random from time to time and go see what info I can find.

With an individual in your family tree this far back, you are likely related to them in more than one way. Gramps calculates several relationships of this individual to me including the following:

DE HOLLAND, Joan Duchess Of York is the fourth cousin twenty-one times removed. Common ancestors are: de Segrave, Nicholaus 1st Baron of Segrave, De Lacie, Maud, de Segrave, Nicholaus 1st Baron of Segrave, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud, De Lacie, Maud.

DE HOLLAND, Joan Duchess Of York is the fifth cousin nineteen times removed. Common ancestor is de Chaucombe, Anabil.

DE HOLLAND, Joan Duchess Of York is the fourth cousin twenty times removed. Common ancestors are De Lacie, Maud and De Lacie, Maud.

DE HOLLAND, Joan Duchess Of York is the sixth cousin nineteen times removed. Common ancestor is de Clare, Matilda.

DE HOLLAND, Joan Duchess Of York is the seventh cousin eighteen times removed. Common ancestors are: De Clare, Richard, Meullent Of Gloucester, Amica, De Clare, Richard, Meullent Of Gloucester, Amica, De Clare, Richard, Meullent Of Gloucester, Amica, De Clare, Richard, Meullent Of Gloucester, Amica, de Quincy, Saher IV, de Beaumont, Margaret, de Beaumont, Margaret, Le Meschines, Hugh, De Montfort, Bertrade D'evreux, De Montfort, Bertrade D'evreux, Le Meschines, Hugh, de Beaumont, Margaret, De Montfort, Bertrade D'evreux, Le Meschines, Hugh, de Quincy, Saher IV, de Beaumont, Margaret, de Beaumont, Margaret, de Quincy, Saher IV, de Beaumont, Margaret, de Quincy, Saher IV, de Beaumont, Margaret, de Beaumont, Margaret, de Beaumont, Margaret, de Beaumont, Margaret, De Montfort, Bertrade D'evreux, Le Meschines, Hugh, de Beaumont, Margaret, de Beaumont, Margaret, Le Meschines, Hugh, De Montfort, Bertrade D'evreux.

DE HOLLAND, Joan Duchess Of York is the eighth cousin seventeen times removed. Common ancestors are: de Clare, Roger, de St. Hilaire, Maud, de St. Hilaire, Maud, de Quincy, Robert I, of Louchers, Orabilis, de Beaumont, Robert III, de Grentemesnil, Pernell, Le Meschines, Ranulf IV, De Caen, Maud, De Montfort, Simon III, d'Evereux, Maud, de Quincy, Robert I, of Louchers, Orabilis, de Beaumont, Robert III, de Grentemesnil, Pernell, De Montfort, Simon III, d'Evereux, Maud, de Quincy, Robert I, of Louchers, Orabilis, de Quincy, Robert I, of Louchers, Orabilis, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell, de Beaumont, Robert III, de Grentemesnil, Pernell.

DE HOLLAND, Joan Duchess Of York is the ninth cousin sixteen times removed. Common ancestors are: of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), de Beaumont, Robert II, de Montfort, Amice, de Grentmesnil, Hugh II, de Beaumont, Alice, de Beaumont, Robert II, de Montfort, Amice.

DE HOLLAND, Joan Duchess Of York is the ninth cousin fifteen times removed. Common ancestors are: of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud), of Caen, Robert, Fitzhammon, Mabel (Maud).

DE HOLLAND, Joan Duchess Of York is the seventh cousin seventeen times removed. Common ancestors are: de Quincy, Saher IV, de Beaumont, Margaret, de Quincy, Saher IV, de Beaumont, Margaret, de Quincy, Saher IV, de Beaumont, Margaret, de Quincy, Saher IV, de Beaumont, Margaret, de Beaumont, Margaret, de Beaumont, Margaret, de Beaumont, Margaret, de Beaumont, Margaret, De Montfort, Bertrade D'evreux, Le Meschines, Hugh.

DE HOLLAND, Joan Duchess Of York is the ninth cousin fourteen times removed. Common ancestors are: of Caen, Robert, of Caen, Robert, of Caen, Robert, of Caen, Robert.

DE HOLLAND, Joan Duchess Of York is the tenth cousin fifteen times removed. Common ancestors are: England, Henry I, England, Henry I, England, Henry I, England, Henry I, England, Henry I, England, Henry I, England, Henry I, England, Henry I, De Crepi, Isabel, De Crepi, Isabel, of Huntingdon, Matilda.

DE HOLLAND, Joan Duchess Of York is the tenth cousin fourteen times removed. Common ancestors are: England, Henry I, England, Henry I, England, Henry I, England, Henry I.

DE HOLLAND, Joan Duchess Of York is the seventh cousin sixteen times removed. Common ancestor is de Beaumont, Margaret.

DE HOLLAND, Joan Duchess Of York is the eighth cousin sixteen times removed. Common ancestors are de Beaumont, Robert III and de Grentemesnil, Pernell.

Sources:

Research comes from a variety of online sources, original documents and personal knowledge. Generally, if the source was from another researcher online, their original sources are used. More information and details about the sources can sometimes be found by clicking on the associated link at the bottom in the "Source References" section.

The information below is an extract from a report I generated via the Gramps genealogy software from a family tree I originally created with GenoPro and then modified to look reasonable here (as much as I could anyway).