Legally Catherine of Aragon was married incestually because she as widow of one brother married the other after the first hausband's death. But that's just a formality. History has shown that Royal families did not hesitate to form very close bonds between them. While a marriage of cousin and cousin happened quite often, marriages between unles and nieces are rare - but they happened, too.
One example is the marriage of Antoinette Marie of Wuerttemberg to Ernst I. of Saxe-Coburg-Gotha. Marie's mother Antoinette of Saxe-Coburg-Saalfeld was the sister of the groom.
Then there are the three uncle-niece marriages of the Spanish and Austrian Habsburgs:
- Philipp II. married Anna of Austria, the daughter of his sister Marie.
- Archduke Charles II of Austria-Innerösterreich married Maria Anna of Bavaria, daughter of his sister Anna of Austria.
- Philipp IV. married Marianna of Austria, daughter of his sister Maria Anna.
As you can see, the last three uncle-niece-marriages happened in the House of Habsburg between 1550 and 1660 in the direct line leading to Philipp IV. of Spain and his wife Marianna of Austria. Their child is the sad, sick Don Carlos of Schillerian fame...
Not 100 years later, the House of Habsburg ended in the male line. But of course the marriage of Maria Theresia of Austria to Francis Stephan of Lorraine brought new blood into the family..
Do you know of other examples?
One example is the marriage of Antoinette Marie of Wuerttemberg to Ernst I. of Saxe-Coburg-Gotha. Marie's mother Antoinette of Saxe-Coburg-Saalfeld was the sister of the groom.
Then there are the three uncle-niece marriages of the Spanish and Austrian Habsburgs:
- Philipp II. married Anna of Austria, the daughter of his sister Marie.
- Archduke Charles II of Austria-Innerösterreich married Maria Anna of Bavaria, daughter of his sister Anna of Austria.
- Philipp IV. married Marianna of Austria, daughter of his sister Maria Anna.
As you can see, the last three uncle-niece-marriages happened in the House of Habsburg between 1550 and 1660 in the direct line leading to Philipp IV. of Spain and his wife Marianna of Austria. Their child is the sad, sick Don Carlos of Schillerian fame...
Not 100 years later, the House of Habsburg ended in the male line. But of course the marriage of Maria Theresia of Austria to Francis Stephan of Lorraine brought new blood into the family..
Do you know of other examples?