Sicko Sjaerdema
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.