<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">cornerstones</topic></authority><related type="other"><topic>quoins</topic></related><related type="other"><topic>date stones</topic></related><related type="broader"><topic>wall components by location or context</topic></related><variant type="other"><topic>corner-stone</topic></variant><variant type="other"><topic>corner-stones</topic></variant><variant type="other"><topic>cornerstone</topic></variant><variant type="other"><topic>foundation stones</topic></variant><variant type="other"><topic>headstones</topic></variant><variant type="other"><topic>pillar-stones</topic></variant><variant type="other"><topic>foundation-stones</topic></variant> <note xml:lang="en"><![CDATA[ Stones forming part of corners or angles in walls, especially when lying at the foundation of a principal angle. These may also incorporate the date of or inscription about the structure's construction. ]]></note></mads>