Some stuff from a TL idea I have
House of Habsburg
Philip I of Castile (1478-1506), King of Castile 1506-1506 Duke of Burgundy 1482-1506 M. 1496 Joanna "the Mad" of Castile (1479-1555), Queen of Castile 1504-1555, Queen of Aragon 1516-1555
1. Eleanor, Queen of Portugal (1498-1558) M. 1518 Manuel I of Portugal (1469-1521)
Had Issue, M. 1524 Charles III, Duke of Bourbon (1490-1543)
Had Issue
2. Charles (V) (1500-1529), Anti-Emperor and King of Germany 1523-1529, King of Spain 1516-1529, Archduke of Austria 1519-1529, Duke of Burgundy 1506-1529
3. Isabella, Queen of Denmark (1501-1526) M. 1515 Christian II of Denmark (1481-1559)
Had Issue
4. Ferdinand V (1503-1554), Anti-King of Bohemia and Hungary 1524-1529, King of Spain 1529-1554, Archduke of Austria 1529-1554, Duke of Burgundy 1529-1554 M.1515 Anne of Bohemia and Hungary (1503-1546)
1. Charles II (1530-1593), King of Spain 1554-1593
3. Maximilian II (1533-1578), Archduke of Austria 1554-1578
4. Ferdinand II (1535-1601), Duke of Burgundy 1554-1601
Others
5. Mary, Queen of Bohemia and Hungary (1505-1558) M. 1522 Louis II, King of Bohemia and Hungary (1506-1524)
1. Louis III "the Young' (1523-1570), King of Bohemia and Hungary (1524-1570)
6. Catherine of Austria, Queen of England (1507-1571) M. 1527 Henry VIII, King of England (1491-1556)
See below for issue
House of Tudor
Henry VIII (1491-1556), King of England 1507-1556 M. 1509, D. 1527 Catherine of Aragon (1485-1530), M. 1527 Catherine of Austria (1507-1571)
1a. Henry, Duke of Cornwall (1511-1511)
2a. Mary Tudor, Queen of Spain (1516-1562) M. 1549 Charles II of Spain (1530-1593) Had Issue
3b. Elizabeth Tudor, Duchess of Bavaria (1530-1558) M. 1548 Albert V, Duke of Bavaria (1528-1579) Had Issue
4b. Henry, Prince of Wales (1532-1540)
5b. Margaret Tudor, Duchess of Ormond (1536-1590) M. Thomas Butler, 1st Duke of Ormond (1528-1579) Had Issue
6b. Edward VI of England (1538-1571), King of England 1556-1571 M. Mary I of Scotland (1542-1603), Queen of Scotland 1567-1603