The whole armor including the horse was the equivalent of 20 to 25 cattle.
In 1250, the equivalent had grown to 40 or 50 cattle.
In the 14th century, the weight of a coat of armor reached 25 to 30 kilos,
55 to 65 pounds, and grew even further for the armor that could
protect against arrows, and partially protect against crossbow attack.
A few pieces of armor from the 15th century used exclusively for
jousting and tournaments reached 50 to 60 kilos, 110 to 130 lbs.
In Roland, one finds an aesthetic of armor, a delight in the ways in
which the gold and gems shine amidst all the blood and carnage.
As the Saracens leave for the attack at Roncesvalles,
they arm themselves in Saracen hauberks.
All but a few are lined with triple mail.
They lace on their good helms of Saragosa, gird on their swords,
the steel forged in Vienne.
They have rich shields, spears of Valencia, and
gonfanons of white and blue and red.
They leave the mules and
riding horses now, mount their war horses and ride in close array.
The day was fair, the sun was shining bright,
all their armor was aflame with light.