He became eligible to take his seat in the House of Lords on his 21st birthday in 1940 .
He was on active service at the time , and did not do so until 9 October 1945 .
Although he became eligible to take his seat in the House of Lords on his 21st birthday in 1940 , he was on active service at the time , and did not do so until 9 October 1945 .