Table:
0
A
B
C
D
E
F
1
Born
Became oldest MP
Left House
Age on leaving
Died
Political Party
2
6 May 1866
1945
1950
83 2
24 April 1957
Liberal Party
3
22 November 1871
1950
Feb 1964
92 1
25 February 1964
Labour Party
4
30 November 1874
Feb 1964
Sep 1964
89 2
24 January 1965
Conservative
5
18 October 1884
Sep 1964
1970
85 2
8 May 1986
Labour Party
6
probably 9 November 1879
1970
1972
92 1
25 February 1972
Labour Party
7
1 February 1890
1972
1973
83 1
8 October 1973
Labour Party
8
23 February 1895
1973
Feb 1974
79 2
26 April 1980
Conservative
9
18 June 1898
Feb 1974
1979
80 2
6 May 1987
Labour Party
10
16 January 1905
1979
1987
82 2
4 June 1990
Labour Party
11
23 July 1913
1987
1992
78 2
3 March 2010
Labour Party
12
9 July 1916
1992
2001
84 2
17 July 2005
Conservative
13
20 November 1921
2001
2007
85 1
21 June 2007
Labour Party
14
6 April 1926
2007
2010
84 2
living
Democratic Unionist Party
15
1 February 1930
2010
N/A
N/A
living
Conservative

Questions and formulas:
Question: How old was the conservative party member that left the house in 2001?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(F1="conservative")*(C1=2001)),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,(F2:F15="conservative")*(C2:C15=2001)),4))
Level: medium