In memory of Empress Elisabeth of Austria, who was assassinated in 1898, a monument was unveiled on June 4, 1907, in Vienna’s Volksgarten. The construction of this memorial site was initiated by a committee under the patronage of Archduke Otto of Austria and his wife Maria Josepha of Saxony. Emperor Franz Joseph I and the entire imperial court were present to pay tribute once more to the beloved Empress.

In the footage, Emperor Franz Joseph I appears alongside his sister-in-law, Marie Sophie, Duchess in Bavaria, the former Queen of the Two Sicilies.

Portrait of Margaret of Austria

Artist: Bartolomé González y Serrano (Spanish,(1564–1627) baroque

Date: 1621

Medium: Oil on canvas

Collection: Galería de las Colecciones Reales, Madrid, Spain

Margaret of Austria, Queen of Spain

Margaret of Austria (1584–1611) was Queen of Spain and Portugal as the wife of King Philip III. Renowned for her piety and sharp political acumen, she actively shaped the Spanish court by countering the corrupting influence of the King’s chief minister, the Duke of Lerma.

Margaret was the daughter of Archduke Charles II of Austria and Maria Anna of Bavaria and thus the paternal granddaughter of the Holy Roman Emperor Ferdinand I.

She married King Philip III in 1599, establishing a strong pro-Austrian and traditionalist faction at the Spanish court.Children: The marriage produced eight children, five of whom survived into adulthood. Her children included future King Philip IV and Anne of Austria, who became Queen of France.

The original tiara was made for Princess Augusta of Hesse-Kassel as a wedding gift when she married Prince Adolphus, Duke of Cambridge in 1818. It became quite the trendsetter and several replicas were made over the next century. As the tiaras were bought and sold it became more difficult to tell them apart. For example, jewelry historian, Vincent Meylan, suggests that the tiara worn by Maharani Mehtab Kaur of Patiala is the original CLK but it's also possibly completely different from all of the tiaras listed below.

Duchess of Cambridge's Lover's Knot Tiara - made circa 1818 in Germany - now owned by Princess Marie Gabrielle von Waldburg zu Zeil

Queen Therese of Bavaria's Lover's Knot Tiara - made circa 1825 by Caspar Rieländer - now on display at the Munich Residenz

Unknown Lover's Knot Tiara - sold at Christie's in 1985

Princess Tatiana Yusupova's Lover's Knot Tiara - dismantled by the Bolsheviks in 1925

Princess Maria Immacolata of Saxony's Lover's Knot Tiara

Queen Mary of the United Kingdom's Lover's Knot Tiara - made in 1913 by E. Wolff & Co. for Garrard - now owned by King Charles III and worn by the Princess of Wales