• province of the Netherlands. The potestaat was the elected provincial ruler. Sjaerdema came from Ylst or IJlst (Elostoe in Latin) and was elected to Potestaat...
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    half. King Abel received word that the peasants in Frisia, led by Sicko Sjaerdema of Friesland, refused to pay the tax levy. Abel raised an army to punish...
    10 KB (1,050 words) - 09:50, 4 November 2024
  • (many Frisians were recruited into the crusades to the Holy Land) Sicko Sjaerdema, 1237-1260 (Count William II of Holland offered him regional rule of...
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    (b. 1222) date unknown Kitbuqa, Mongol military leader (executed) Sicko Sjaerdema, ruler of Friesland[citation needed] Ibn al-Abbar, Andalusian diplomat...
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  • (b. 1222) date unknown Kitbuqa, Mongol military leader (executed) Sicko Sjaerdema, ruler of Friesland[citation needed] Ibn al-Abbar, Andalusian diplomat...
    491 bytes (13,697 words) - 21:50, 16 November 2023