In some cases, house laws are rules or traditions that are treated as if they have the force of law. In the United Kingdom an example of this might be considered the custom whereby a wife shares in her husband's hereditary titles and rank. While this is settled
common law with respect to the wives of
peers and commoners, it is less clear when it comes to consorts of the king and princes. When, in 1923,
Prince Albert, Duke of York became the first male member of the British royal family to marry a non-princess in more than 300 years (with the sovereign's approval), an announcement was apparently issued by
Buckingham Palace and carried in the
London Gazette and
The Times, "It is officially announced that, in accordance with the settled general rule that a wife takes the status of her husband,
Lady Elizabeth Bowes-Lyon on her marriage has become Her Royal Highness the Duchess of York, with the status of a Princess". This issue was revisited by the British government in both 1937 and 2005, when the marriages of former and future kings to divorcées cast into doubt what titulature was appropriate for women who were to become, essentially, the
private wives of royal princes. As can be gleaned from discussions at the time, popular certainty that "a woman is entitled to share her husband's status", has by no means been seen as absolutely clear by government experts and lawyers upon examining the matter. In the case of the marriage of
Prince Charles to
Camilla Parker Bowles, in 2005, the matter was settled by the decision that Camilla, whilst legally the Princess of Wales, would only use her secondary title of Duchess of Cornwall, out of respect to public sensibilities and to her predecessor,
Diana, Princess of Wales. ==Extraordinary law==