Leopold I, Duke of Austria
Leopold I (4 August 1290 – 28 February 1326) from the House of Habsburg was Duke of Austria and Styria – as co-ruler with his elder brother Frederick the Fair – from 1308 until his death.
Born at Vienna, he was the third son of King Albert I of Germany and Elisabeth of Gorizia-Tyrol, a scion of the Meinhardiner dynasty.
Enguerrand IV de Coucy
Enguerrand IV, Lord of Coucy( c. 1236 – 1311) was the son of Enguerrand III, Lord of Coucy and Marie de Montmirail.
He succeeded his older brother Raoul II, Lord of Coucy, serving as the Sire de Coucy from his brother's death in 1250 until his own in 1311.
Enguerrand V de Coucy
Enguerrand V, Lord of Coucy( after 1321) inherited the title of Lord of Coucy and castle from his maternal uncle, Enguerrand IV in 1311.
He was also lord of Oisy and Montmirail.
Ralph I, Lord of Coucy
Ralph of Coucy,( c. 1134 – 1191), lord of Coucy, lord of Marle, La Fère, Crécy( sur- Serre), Vervins, Pinon, Landouzy( la- Ville), and Fontaine( lès- Vervins).
He was the son of Enguerrand II, Lord of Coucy and Agnes de Beaugency.
Aimé Clariond
Aimé Clariond( 10 April 1894 – 1 January 1959) was a French stage and film actor.
He was in a relationship with the mother of Catherine Deneuve, Renée Simonot, and was the father of Catherine's half- sister Danielle( born 1936).
Clariond was born in Périgueux, Dordogne, France and died in Paris.
Catherine of Austria, Lady of Coucy
Catherine of Austria (9 February 1320 – 28 September 1349) was the oldest daughter of Leopold I, Duke of Austria and his wife Catherine of Savoy.
She was a member of the House of Habsburg by birth and married the Lord of Coucy.
Enguerrand III, Lord of Coucy
Enguerrand III de Boves, Lord of Coucy( c.1182–1242) was the eldest son and successor of Ralph I, Lord of Coucy( c. 1134 – 1191) and Alix de Dreux.
He succeeded as Lord of Coucy(" sieur de Couci") in 1191, and held it until his death; he was also lord of Marle and Boves.
Thomas, Lord of Coucy
Thomas of Marle, Lord of Coucy and Boves, was born in 1073 to Enguerrand I of Boves, the Lord of Coucy and his wife Adele of Marle.
After the death of his father, Enguerrand I, Thomas would become the Lord of Coucy and his family's other holdings.
As the best- known of the Lords of Coucy, Thomas of Marle would become infamous for his aggressive and brutal tactics in war and his continued rebellion against the authority of Louis VI.
Archduke Otto of Austria (1865–1906)
Archduke Otto Franz Joseph Karl Ludwig Maria of Austria (21 April 1865 – 1 November 1906) was the second son of Archduke Karl Ludwig of Austria (younger brother of Emperor Franz Joseph I of Austria) and his second wife, Princess Maria Annunciata of Bourbon-Two Sicilies.
He was the father of Charles I of Austria, the last Emperor of Austria.
Jean-Charles de Coucy
Jean- Charles de Coucy( born on 23 September 1746 at the Château d' Écordal, died on 9 March 1824 in Reims) was an ecclesiastic who was Archbishop of Reims.

Question: What is the place of birth of Catherine Of Austria, Lady Of Coucy's father?
Answer: Vienna