University of Coimbra | Catherine, Duchess of Cambridge | La Seu d'Urgell | Sarah, Duchess of York | Camilla, Duchess of Cornwall | Urgell | Coimbra | Marie Louise, Duchess of Parma | Princess Louise, Duchess of Argyll | Isabella I of Castile | Isabella | Isabella II of Spain | Duchess of Cambridge | Tony Isabella | Sarah Lennox, Duchess of Richmond and Lennox | Duchess of York | Isabella Stewart Gardner | Duchess of Kent | Maria Teresa, Grand Duchess of Luxembourg | Isabella Rossellini | Duchess of Cornwall | Duchess Charlotte Georgine of Mecklenburg-Strelitz | Catherine of Brunswick-Wolfenbüttel, Duchess of Saxe-Lauenburg | Princess Madeleine, Duchess of Hälsingland and Gästrikland | Princess Alice, Duchess of Gloucester | Natalia Grosvenor, Duchess of Westminster | Maria Vladimirovna, Grand Duchess of Russia | Georgiana Cavendish, Duchess of Devonshire | Isabella Boschetti | Duchess Theatre |
In 1429 Peter married Isabella of Urgell, daughter of James II, Count of Urgell, and candidate to the throne of the Crown of Aragon at the Compromise of Caspe.