Isaiah Landon

Isaiah Clayton Landon (November 5, 1817–April 13, 1874) was a Sierran politician best known for his instrumental role in the Sierran Civil War as the leader of the self-proclaimed Second California Republic and the Republican faction.

Hailed as a republican, Landon's opposition to the Sierran monarchy ultimately failed. Following his surrender at the end of the civil war in 1877, Landon was placed on a lifelong at his Fresno residence. Landon represented one of the most prominent republican figures in Sierran history, and was among the last of the so-called "Radical Democratic-Republicans" leaders who advocated for the abolition of the monarchy in the 19th century.

While Landon has been revered romantically in contemporary times as a revolutionary, his military tactics, especially those towards the end of the civil war, and his governance as the Republic's only chairman have been met with controversy.