The story is told of the election of the first Frankish king. It says that after the death of Sunno, his brother Marcomer, leader of the Ampsivarii & Chatti, proposed to the Franks that they should have one single king.
His Coat of Arms was 3 Frogs / Toads
Merovech is the legendary founder of the #Merovingian dynasty of the Salian Franks, which later became the dominant Frankish tribe.
The Frog were turn to Fleur De Lis.
Thread on Heraldry