Are 'Kenzan' and 'Ishin' Related as 'Yakuza' Game Spin-Offs?

Are "Yakuza Kenzan" and 'Like a Dragon: Ishin!' related? These two spin-offs take place at different points during the feudal era of Japan.
Are Yakuza Kenzan and 'Like a Dragon: Ishin!' related? These two spin-offs take place at different points during the feudal era of Japan.

New Ryu Ga Gotoku Ishin details from Dengeki Playstation - Yakuza Fan

Yakuza Kenzan And Yakuza Ishin Localisations Have More Chance Now Thanks To Ghost Of Tsushima Success - PlayStation Universe

Yakuza Kenzan Remake Would Need A Lot Of Time And Money,, 46% OFF

Samantha Lienhard - Readers and Gamers Unite

How to Play the Yakuza Games in Chronological Order - IGN

Yakuza Kenzan Encyclopedia MDPI

■Set Contents(2Games) (1)Yakuza Ishin!(Ryu ga Gotoku Ishin!) (2)Yakuza Kenzan!(Ryu ga Gotoku Kenzan!) ■Product Features A spin-off of The Yakuza

Yakuza Ishin! & Yakuza Kenzan! -Ryu ga Gotoku- (2Games) PS3 [Japan Import]

Another samurai-period Like A Dragon remake might happen if Ishin does well

EPIC UNLOCALIZED YAKUZA SPIN-OFF

After Like a Dragon: Ishin, a Kenzan Remake Seems Inevitable