Table:
0
A
B
C
D
E
F
G
1
Name
Birth
Marriage
Became Duke
Ceased to be Duke
Death
Spouse
2
Louis de Rohan-Chabot
3 November 1652
18 July 1678
27 February 1655 father's death
17 August 1727
17 August 1727
Marie Élisabeth du Bec-Crespin de Grimaldi
3
Louis Bretagne Alain de Rohan-Chabot
26 September 1679
29 May 1708
17 August 1727 father's death
10 August 1738
10 August 1738
Françoise de Roquelaure
4
Louis Marie de Rohan-Chabot
17 January 1710
19 December 1735
10 August 1738 father's death
28 November 1791
28 November 1791
Charlotte Rosalie de Châtillon
5
Louis Antoine de Rohan-Chabot
20 April 1733
12 April 1757
28 November 1791 uncles death
29 November 1807
29 November 1807
Élisabeth Louise de La Rochefoucauld
6
Alexandre de Rohan-Chabot
3 December 1761
29 May 1785
29 November 1807 father's death
8 February 1816
8 February 1816
Anne Louise Élisabeth de Montmorency
7
Louis François de Rohan-Chabot
29 February 1788
2 May 1808
8 February 1816 father's death
8 February 1833
8 February 1833
Marie Georgine Armandine de Sérent
8
Fernand de Rohan-Chabot
14 October 1789
19 May 1817
8 February 1833 brothers death
10 September 1869
10 September 1869
Josephine Françoise de Gontaut-Biron
9
Charles de Rohan-Chabot
12 December 1819
29 June 1843
10 September 1869 father's death
6 August 1893
6 August 1893
Octavie Rouillé de Boissy
10
Alain de Rohan-Chabot
1 December 1844
26 June 1872
6 August 1893 father's death
6 January 1914
6 January 1914
Herminie de La Brousse de Verteillac
11
Josselin de Rohan-Chabot
4 April 1879
11 June 1906
6 January 1914 father's death
13 July 1916
13 July 1916
Marguerite Marie de Rohan-Chabot
12
Alain Louis Auguste de Rohan-Chabot
10 May 1913
5 May 1937
13 July 1916 father's death
17 May 1966
17 May 1966
Helene Claire Marie de Liencourt
13
Josselin de Rohan-Chabot
5 June 1938
17 November 1973
17 May 1966 father's death
N/A
N/A
Antoinette Jeanne Yvonne Boegner
14
Name
Birth
Marriage
Became Duke
Ceased to be Duke
Death
Spouse

Questions and formulas:
Question: On waht date did Antoinette Jeanne Yvonne Boegner get married?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,G1="antoinette jeanne yvonne boegner"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G14,G2:G14="antoinette jeanne yvonne boegner"),3))
Level: medium