http://agathe.gr/democracy/tyranny.html
Tyranny As happened in many other Greek states, a tyrant arose in Athens in the 6th century B.C. His name was Peisistratos, and after several unsuccessful attempts he seized power in 546 B.C. and ruled ... Peisistratos, head of one of the large aristocratic families, seized power by force during a period of factional strife. ... Athens, Agora Museum I 4120. Broken from a large marble block inscribed with a list of archons of Athens, this piece preserves parts of the names of six archons of the 520's B.C.; two of them are members of the family of Peisistratos: In the second line we read Hippias, his son, and in the last line, Peisistratos the younger, his grandson. ... The letter forms date the inscription to the later part of the 5th century B.C., which means the piece shown here recorded the names of individuals who held office a century earlier.