Who wrote the book called "El Filibusterismo", which is the also the second sequel of "Noli Me Tángere"?

El filibusterismo (translation: The filibusterism; The Subversive or The Subversion, as in the Locsín English translation, are also possible translations), also known by its alternative English title "The Reign of Greed", is the second novel written by Philippine national hero "José Rizal".

It is the sequel to "Noli Me Tángere" and, like the first book, was written in Spanish. It was first published in 1891 in Ghent.

The second and last novel completed by José Rizal, El Filibusterismo is a sequel to Noli Me Tangere. A dark, brooding, at times satirical novel of revenge, unfulfilled love, and tragedy, the Fili (as it is popularly referred to) still has as its protagonist Juan Crisóstomo Ibarra. Thirteen years older, his idealism and youthful dreams shattered, and taking advantage of the belief that he died at the end of Noli Me Tangere, he is disguised as Simoun, an enormously wealthy and mysterious jeweler who has gained the confidence of the colony’s governor-general.