Here's my idea:
Henry VII of England (b.1457: d.1509) m. Elizabeth of York (b.1466: d.1503) (a)
Henry VII of England (b.1457: d.1509) m. Elizabeth of York (b.1466: d.1503) (a)
1a) Arthur Tudor I of England (b.1486: d.1544) m. Catherine of Aragon (b.1485: d.1536) (a)
3a) Prince Henry Tudor, Duke of York (b.1491: d.1498)
4a) Elizabeth Tudor, Queen of Scots (b.1492: d.1550) m. James IV of Scotland (b.1473: d.1517)
6a) Prince Edmund Tudor, Duke of York (b.1499: d.1559) m. Marie de Bourbon (b.1515: d.1540) (a)
1a) Princess Elizabeth Tudor (b.1504) m. m. Henry III of Nassau-Breda (b.1483: 1538) (a)
3a) Henry VIII of England (b.1508: d.1560) m. Catherine of Austria (b.1507) (a)
5a) Prince Edward Tudor, Duke of Somerset (b.1510: d.1551) m. Katherine Grey (b.1512: d.1532) (a), Winifred Pole (b.1525: d.1588) (b)
7a) Stillborn Boy (c.1512)
8a) Stillborn Girl (c.1515)
9a) Miscarriage (b.1516)
10a) Princess Joan Tudor (b.1519: d.1519)
2a) Princess Margaret Tudor (b.1489: d.1490)1a) Miscarriage (c.1525)
2a) Stillborn Boy (c.1530)
3a) Margaret of Nassau-Breda (b.1533: d.1535)
4a) Miscarriage (c.1539)
2a) Miscarriage (c.1505)2a) Stillborn Boy (c.1530)
3a) Margaret of Nassau-Breda (b.1533: d.1535)
4a) Miscarriage (c.1539)
3a) Henry VIII of England (b.1508: d.1560) m. Catherine of Austria (b.1507) (a)
1a) Miscarriage (c.1520)
2a) Arthur, Prince of Wales (b.1522)
3a) Margaret Tudor (b.1523: d.1525)
4a) Stillborn Boy (c.1526)
5a) Henry Tudor, Duke of Clarence (b.1528: d.1535)
6a) Edmund Tudor, Duke of Gloucester (c.1533: d.1538)
7a) Joan Tudor (b.1535)
8a) Edward Tudor (b.1538: d.1539)
4a) Stillborn Boy (c.1509)2a) Arthur, Prince of Wales (b.1522)
3a) Margaret Tudor (b.1523: d.1525)
4a) Stillborn Boy (c.1526)
5a) Henry Tudor, Duke of Clarence (b.1528: d.1535)
6a) Edmund Tudor, Duke of Gloucester (c.1533: d.1538)
7a) Joan Tudor (b.1535)
8a) Edward Tudor (b.1538: d.1539)
5a) Prince Edward Tudor, Duke of Somerset (b.1510: d.1551) m. Katherine Grey (b.1512: d.1532) (a), Winifred Pole (b.1525: d.1588) (b)
1a) Miscarriage (c.1530)
2a) Margaret Tudor of Somerset (b.1531: d.1549)
3b) Miscarriage (c.1546)
4b) Owen Tudor, Duke of Somerset (b.1550)
6a) Princess Mary Tudor (b.1511: d.1512)2a) Margaret Tudor of Somerset (b.1531: d.1549)
3b) Miscarriage (c.1546)
4b) Owen Tudor, Duke of Somerset (b.1550)
7a) Stillborn Boy (c.1512)
8a) Stillborn Girl (c.1515)
9a) Miscarriage (b.1516)
10a) Princess Joan Tudor (b.1519: d.1519)
3a) Prince Henry Tudor, Duke of York (b.1491: d.1498)
4a) Elizabeth Tudor, Queen of Scots (b.1492: d.1550) m. James IV of Scotland (b.1473: d.1517)
1a) Arthur Stewart, Duke of Rothesay (b.1509: d.1511)
2a) James Stewart V of Scotland (b.1510) m. Mary of Guise, Queen of Scots (b.1515: d.1560) (a)
4a) Alexander Stewart, Duke of Ross (b.1513: d.1540) m. Janet Gordon (b.1515: d.1590) (a)
6a) Miscarriage (c.1514)
7a) Princess Margaret Stewart (b.1516: d.1517)
8a) Stillborn Girl (c.1518)
5a) Princess Mary Tudor (b.1496: d.1497)2a) James Stewart V of Scotland (b.1510) m. Mary of Guise, Queen of Scots (b.1515: d.1560) (a)
1a) May Stewart (b.1539)
2a) James Stewart, Duke of Rothesay (b.1540: d.1544)
3a) Robert Stewart, Duke of Albany (b.1542: d.1545)
4a) Alexander IV of Scotland (b.1543)
3a) Stillborn Girl (c.1512)2a) James Stewart, Duke of Rothesay (b.1540: d.1544)
3a) Robert Stewart, Duke of Albany (b.1542: d.1545)
4a) Alexander IV of Scotland (b.1543)
4a) Alexander Stewart, Duke of Ross (b.1513: d.1540) m. Janet Gordon (b.1515: d.1590) (a)
1a) James Stewart (b.1535: d.1536)
5a) Stillborn Boy (c.1513)
6a) Miscarriage (c.1514)
7a) Princess Margaret Stewart (b.1516: d.1517)
8a) Stillborn Girl (c.1518)
6a) Prince Edmund Tudor, Duke of York (b.1499: d.1559) m. Marie de Bourbon (b.1515: d.1540) (a)
1a) Arthur Tudor of York (b.1531: d.1533)
2a) Mary Tudor of York (b.1534)
3a) Henry Tudor of York (b.1535: d.1536)
4a) Charles Tudor, Duke of York (b.1536: d.1600) m. Margaret of Austria (b.1536: d.1567) (a), Anna Elisabeth of the Palatinate (b.1549: d.1609)
7a) Katherine Tudor (b.1503: d.1567) John III of Portugal (b.1502: d.1557) (a)2a) Mary Tudor of York (b.1534)
3a) Henry Tudor of York (b.1535: d.1536)
4a) Charles Tudor, Duke of York (b.1536: d.1600) m. Margaret of Austria (b.1536: d.1567) (a), Anna Elisabeth of the Palatinate (b.1549: d.1609)
1a) Miscarriage (c.1560)
2b) Edward Tudor of York (b.1571: d.1577)
2a) Frederick Tudor of York (b.1574: d.1599)
3a) Anne Tudor of York (b.1580)
5a) Stillborn Boy (c.1539)2b) Edward Tudor of York (b.1571: d.1577)
2a) Frederick Tudor of York (b.1574: d.1599)
3a) Anne Tudor of York (b.1580)
1a) Prince John of Portugal (b.1524: d.1530)
2a) Princess Maria Catalina of Portugal (b.1525: d.1549)
3a) Princess Isabel of Portugal (b.1527: d.1559) m. Philip II of Spain (b.1527: d.1598) (a)
5a) Manuel II of Portugal (b.1531: d.1598) m. Joanna of Austria (b.1535: d.1573) (a)
7a) Princess Beatrice of Portugal (b.1537: d.1540)
8a) Prince Denis of Portugal (b.1540: d.1540)
9a) Princess Joanna of Portugal (b.1542: d.1564) m. Charles, Archduke of Austria (b.1540: d.1590)
2a) Princess Maria Catalina of Portugal (b.1525: d.1549)
3a) Princess Isabel of Portugal (b.1527: d.1559) m. Philip II of Spain (b.1527: d.1598) (a)
1a) Charles, Prince of Asturias (b.1545)
2a) Anne of Austria (b.1548)
3a) Maria Christina of Austria (b.1551)
4a) Isabella of Austria (b.1554)
5a) Henry of Austria (b.1557)
6a) Stillborn Girl (b.1559)
4a) Prince Afonso (b.1528: d.1533)2a) Anne of Austria (b.1548)
3a) Maria Christina of Austria (b.1551)
4a) Isabella of Austria (b.1554)
5a) Henry of Austria (b.1557)
6a) Stillborn Girl (b.1559)
5a) Manuel II of Portugal (b.1531: d.1598) m. Joanna of Austria (b.1535: d.1573) (a)
1a) John of Portugal (b.1555)
2a) Maria Manuela of Portugal (b.1558)
3a) Beatrice of Portugal (b.1560: d.1561)
4a) Isabella of Portugal (b.1560: d.1560)
6a) Prince Philip of Portugal (b.1534: d.1536)2a) Maria Manuela of Portugal (b.1558)
3a) Beatrice of Portugal (b.1560: d.1561)
4a) Isabella of Portugal (b.1560: d.1560)
7a) Princess Beatrice of Portugal (b.1537: d.1540)
8a) Prince Denis of Portugal (b.1540: d.1540)
9a) Princess Joanna of Portugal (b.1542: d.1564) m. Charles, Archduke of Austria (b.1540: d.1590)
1a) Ferdinand of Austria (b.1559: d.1559)
2a) Charles of Austria (b.1562: d.1562)
2a) Charles of Austria (b.1562: d.1562)