Dirk III may refer to:
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Dirk III, Count of Holland
Dirk III (also called ''Dirik'' or ''Theodoric'') was the count with jurisdiction over what would become the county of Holland, often referred to in this period as "West Frisia", from 993 to 27 May 1039. Until 1005, this was under regency of his ...
from 993 to 1039
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Dirk III van Brederode (ca. 1308 – 1377)
{{hndis, Dirk 03