Z-plan is a form of castle design common in Scotland and England.
The Z-plan castle has a strong central rectangular tower with smaller towers attached at diagonally opposite corners.
[1] Prominent examples of the Z-plan include Brodie Castle in Moray, Castle Menzies in Perthshire,[2] Glenbuchat Castle in Aberdeenshire,[3] Castle Fraser in Aberdeenshire, Claypotts Castle in Dundee[4] and Hatton Castle, Angus, Scotland.
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