Ottokar 's heavy cavalry rode armored horses .
Ottakar fielded 6,000 cavalry , of which 1,000 were heavily armed and armored and 5,000 lightly equipped riders .
Ottakar 's heavy cavalry rode armored horses .
Ottakar fielded 6,000 cavalry , of which 1,000 were heavily armed and armored and 5,000 lightly equipped riders .