Post by David Amicus
And if so do they change depending on which party is in power?
https://en.wikipedia.org/wiki/Lord-in-waiting - the political Lords-in-waiting change on a change of government - e.g. in 2010 https://en.wikipedia.org/wiki/Steve_Bassam,_Baron_Bassam_of_Brighton was replaced by https://en.wikipedia.org/wiki/Joyce_Anelay,_Baroness_Anelay_of_St_Johns as https://en.wikipedia.org/wiki/Captain_of_the_Honourable_Corps_of_Gentlemen-at-Arms
Not to be confused with
who do not leave office on a change of government
AFAIK posts like the Lord Steward and Lord Chamberlain ceased to change hands on a change of government in 1924. This was because, when Ramsay MacDonald formed the first Labour government, there were very few Labour peers.