The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
1691 - 1722 (31 years) 
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| Name | Rowland de Port-St. John | |
| Title | 09th Baron of Bletso | |
| Birth | abt. 1691 | |
| Gender | Male | |
| Death | 4 Jul 1722 | |
| Person ID | I10572 | St. John Origin and Ancestry DNA Database | St. John Generation One - Raoul de Sancto Johanne, |
| Last Modified | 21 Feb 2015 | |
| Father | Sir St. Andrew de Port-St. John, 2nd Bart of Woodford, b. c. 1658 d. 1709 (Age 51 years) | |
| Relationship | Birth | |
| Mother | Jane Blois, b. 1666 d. aft. 23 Jan 1711 (Age 45 years) | |
| Relationship | Birth | |
| Marriage | 10 Mar 1681 | St Leonard, Shoreditch, Middlesex, Hackney, England, UK  |
| Family ID | F2798 | Group Sheet | Family Chart |
| Reference | Suzanne St. John. "09th Baron of Bletso Rowland de Port-St. John". The St. John Genealogy Project. https://stjohngenealogy.com/getperson.php?personID=I10572&tree=OSA0001 (accessed April 24, 2025). |
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