Table:
0
A
B
C
D
E
F
G
1
Name
Birth
Marriage
Became Duchess
Ceased to be Duchess
Death
Spouse
2
Eleanor Gonzaga
18 November 1630
30 April 1651
9 July 1654 husband's accession
2 April 1657 husband's death
6 December 1686
Ferdinand I
3
Margarita Teresa of Spain
12 July 1651
12 December 1666
12 December 1666
12 March 1673
12 March 1673
Leopold I
4
Claudia Felicitas of Austria
30 May 1653
15 October 1673
15 October 1673
8 April 1676
8 April 1676
Leopold I
5
Eleonor Magdalene of the Palatinate-Neuburg
6 January 1655
14 December 1676
14 December 1676
5 May 1705 husband's death
19 January 1720
Leopold I
6
Wilhelmina Amalia of Brunswick
21 April 1673
24 February 1699
5 May 1705 husband's ascension
17 April 1711 husband's death
10 April 1742
Joseph I
7
Elisabeth Christine of Brunswick-Wolfenbüttel
28 August 1691
1 August 1708
17 April 1711 husband's ascension
1722 Passed to Lorraine
21 December 1750
Charles I

Questions and formulas:
Question: When did eleonor magdalene of the palatinate-neuburg become duchess?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="eleonor magdalene of the palatinate-neuburg"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,A2:A7="eleonor magdalene of the palatinate-neuburg"),4))
Level: medium
Question: Which Marriage has a Became Duchess of 12 december 1666?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="12 december 1666"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,D2:D7="12 december 1666"),3))
Level: medium
Question: When did the person die who was born on 18 november 1630?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,B1="18 november 1630"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,B2:B7="18 november 1630"),6))
Level: medium
Question: Which Birth has a Became Duchess of 17 april 1711 husband's ascension?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="17 april 1711 husband's ascension"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,D2:D7="17 april 1711 husband's ascension"),2))
Level: medium
Question: Which Spouse has a Birth of 30 may 1653?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,B1="30 may 1653"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,B2:B7="30 may 1653"),7))
Level: medium
Question: When did the person born on 6 january 1655 die?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,B1="6 january 1655"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,B2:B7="6 january 1655"),6))
Level: medium