Nagamasa Yamada

Nagamasa Yamada was a samurai traveled from Japan and entered government service in Ayutthaya Kingdom.

Role in Games
He is a rare navigator in Daikoukai Jidai V, Before being promoted to the super rare and is also super rare navigator in event White Day.

He is a supporting officer in Nobunaga no Yabou Ranseiki and Nobunaga Ambition : Sphere of Influence.

Historical Information
Originally, he was just a litter bearer for Ōkubo Tadasuke who is lord of Numazu. When his master died, he traveled to the land of Suvarnabhumi (was known as Southeast Asia) along with his homeland merchants by Shuinsen ship (was known as Red seal ship) and traveled to the Ayutthaya Kingdom.

When he arrived in the Ayutthaya kingdom, he is the focus of interesting to King Songtham who is twenty-first King of Ayutthaya. Allowing Yamada to be the leader of the Japanese volunteer units in Ayutthaya and to be awarded the noble rank as Ok-ya Senaphimuk (オークヤー・セーナーピムック, Ōkuyā Sēnāpimukku, ออกญาเสนาภิมุข). Later he received the land on the eastern side of Ayutthaya in order to build a village for Japanese people come to live. Currently, the Japanese village is still in Phra Nakhon Si Ayutthaya province and have an exhibition about Yamada and Thao Thong Kip Ma (ターオ・トーンキープマー, Tāo Tōnkīpumā, ท้าวทองกีบม้า).

After that, Yamada tried to switch to Japan and Ayutthaya in the hope of building a relationship but it appears that King Songtham was died suddenly and Ok-ya Sri Worawong had acted as "king-maker" before assuming the throne, by performing the double regicide of King Songtham's sons include Chetthathirat and Athittayawong. Yamada then decided to plan a rebellion against Sri Worawong in order to restore justice to the two sons of King Songtham but he was poisoned by Phraya Chaiya before proceeding with the plan. When Sri Worawong ascended to the throne as King Prasat-Thong, he also had driven the Japanese out of the Ayutthaya land. When Shōgun Hidetada learned of Prasat-Thong's actions, he decided to reject the trade and terminate relations with Ayutthaya.

There are some stories that tell that Yamada gave his servant go to collect tribute in Pattani but was opposed by Dutch merchants, English merchants and Portuguese merchants living in Pattani. Yamada then opened a war with those foreign merchants in Pattani but was injured and have to retreat.