1x6 — The Crown

: Elizabeth initially wants to support her sister but is informed by her advisors, including Tommy Lascelles, of the Royal Marriages Act of 1772 . This law prevents Margaret from marrying without the monarch's consent until she turns 25, unless she renounces her royal rights.

: While Margaret and Peter hope to marry, a reporter notices Margaret intimately brushing a bit of fluff off Peter’s uniform during the Queen’s coronation, leading to newspaper coverage that alerts the public to their relationship. The Crown 1x6

In Season 1, Episode 6 of The Crown , titled the central focus is the burgeoning public scandal surrounding Princess Margaret’s romance with the divorced Group Captain Peter Townsend. The episode highlights the intense conflict Queen Elizabeth II faces as she is forced to choose between her duty to the Crown and her personal loyalty to her sister. Key Plot Developments : Elizabeth initially wants to support her sister

: Elizabeth finds herself "projecting" the needs of the state onto her personal relationships, a recurring struggle throughout the series. In Season 1, Episode 6 of The Crown

: Under pressure from the "establishment"—including the Queen Mother and the Church of England—Elizabeth asks Margaret to wait two years.

: The episode explores the shifting relationship between the royals and the press, which begins to favor sensationalism over traditional deference. "The Crown" Gelignite (TV Episode 2016) - IMDb

: To separate the couple and dampen the scandal, Peter Townsend is abruptly assigned to a post as an air attaché in Brussels, effectively forcing a long-distance separation. Historical Significance