Table:
0
A
B
C
D
E
1
Name dates
Eldest daughter from (date) to (date)
Father
Date married
Husband dates
2
Sophia Dorothea of Hanover 1687–1757
1714–1727
George I
1706
Frederick William I of Prussia 1688–1740
3
Anne, Princess Royal
1727–1759
George II
1734
William IV, Prince of Orange 1711-1751
4
Charlotte, Princess Royal
1766–1820
See above.
See above.
See above.
5
Victoria, Princess Royal
1840–1901
See above.
See above.
See above.
6
Louise, Princess Royal
1901–1910
See above.
See above.
See above.
7
Mary, Princess Royal
1910–1936
See above.
See above.
See above.
8
Elizabeth 1926–present
1936–1952
George VI
1947
Philip of Edinburgh 1921–present
9
Anne, Princess Royal
1952–present
See above.
See above.
See above.

Questions and formulas:
Question: When did Louise, Princess royal get married?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="louise, princess royal"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,A2:A9="louise, princess royal"),4))
Level: medium