Sicko Sjaerdema
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Sikke Sjaardema (died 1260), alternatively spelled Sikko or Sicka, was the eighth potestaat of Friesland, a province of the Netherlands. The potestaat was the elected provincial ruler.
Sikke Sjaardema (died 1260), alternatively spelled Sikko or Sicka, was the eighth potestaat of Friesland, a province of the Netherlands. The potestaat was the elected provincial ruler.