The Iberian influence is evident on the helmet and the torso armor of the great Japanese warlord Tokugawa Ieyasu (1542–1616) who unified Japan for the last time and created the Tokugawa shogunate: they are specifically Portuguese-inspired. The helmet seems to be of the European Cabasset type with a Japanese neck guard while the torso armor is the typical Renaissance European type of the 16th-17th centuries.
By Periklis Deligiannis
I go on with the tribute to more unknown aspects of Samurai warfare of the Muromachi (Ashikaga) and Edo periods of the Japanese history, presenting some non-typical helmet and armor of the Samurais, that is to say casques and armor which are somewhat unusual and distinctive. The helmets have either an unusual shape, for example they are shell-shaped or axe-shaped, or their design bear overseas influences, especially European influences. I also present some armor with rather unusual decorations or under European influence such as an armor of Tokugawa Ieyasu. In the early 16th century, the first European seafarers appeared on the seas of the Philippines and Indonesia pioneered by the Spanish expedition of Magellan (Magellan himself was a Portuguese at the service of the Spaniards). A little later, they appeared on the seas of China and Japan. The Spaniards and the Portuguese were the first to appear there as traders and colonists, to be followed by the Dutch and the British.
There are also influences from the empires of China on the design of the Samurai helmets and armor, but in these two articles I have not added any armor or helmet with clear Chinese influence. Lesser influences on the same military items originated from Korea and the Mongol and Tungus continental tribes.

Wikimedia Commons is the source of most of the images of these two posts. The other came from various sources.

Shell-shaped Samurai helmet.

Samurai helmet with European influences.

Non-typical Sashimono attached to the back of this armour.



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Japan at the end of the Muromachi period. Map showing the territories of major daimyo families.

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Japan at the start of the Edo period. Map showing the provinces during the shogunate of Tokugawa Ieyasu.
Periklis Deligiannis