Table:
0
A
B
C
D
E
1
Name
Birth
Monarch From
Monarch Until
Relationship with Predecessor(s)
2
Name
Birth
Monarch From
Monarch Until
Relationship with Predecessor(s)
3
King George V
3 June 1865
31 May 1910
20 January 1936
None (position ceded)
4
King Edward VIII
23 June 1894
20 January 1936
11 December 1936 (Abdicated)
Son of George V
5
King George VI
14 December 1895
11 December 1936
6 February 1952
Brother of Edward VIII
6
Queen Elizabeth II
21 April 1926
6 February 1952
31 May 1961
Daughter of George VI

Questions and formulas:
Question: Who was the brother of Edward VIII?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="brother of edward viii"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,E2:E6="brother of edward viii"),1))
Level: medium