As well as residential and property based votes (which historically meant you would get one vote per constituency you had a house or a business - limited to 1 + 1 in 1918 RPA) the UK also had university seats from 1603 until 1948 giving extra seat elected by graduates - initially - Oxford, Cambridge and later also London, Scotland, and Trinity College Dublin).
There is a fascinating debate (recorded in Hansard) about Liberal MP, John Shawe-Lefevre's Plural Voting Abolition Bill of 1842 that gives some examples:
I know many men among my own friends who have four or five votes for
different constituencies. I know men of wealth—men with very large
means—who have only one vote, and I know others of smaller means who
have two, three, and four and five votes. I have myself five votes for
five different constituencies—not that I have sought the votes by
purchasing property for that purpose; but they have come to me
accidentally on account of holding property in different places. Two
are occupation votes, two freehold votes, and one is for a University.
But I know many who have a great many more votes than five. I think it
was Sir Robert Fowler, a late Member of this House, who used to boast
that he had no fewer than thirteen votes in different constituencies,
and that he was able at one General Election to record them all. Then
there is the well-known case of the Oxford tutor—a man who had
eighteen different qualifications, and, at the Election of 1874, voted
in respect of these different qualifications eighteen times. But this
case pales before one I heard of recently. A clergyman of the Church
of England, who has a hobby for acquiring qualifications in different
constituencies, has been able to obtain fifty votes in different
places, and I was informed that at a certain General Election he
contrived to vote in no fewer than forty different places.
Plural Voting Abolition Bill 1852
Underlying this anyway is the ability of people to use wealth and power to controls multiple votes even if they belong to others. The critical point of the secret ballot (under Ballot Act 1872) is not just to protect you from threats by - say - employers or landlords to vote a certain way, but to prevent you selling your vote voluntarily by removing your ability to prove how you voted. Which is why, for example, it is illegal to take selfies in polling booths if they show your ballot.