In his summer mansion on Sutivan, on the island of Brač, where he retired after military and legislative career, Kavanjin wrote the most voluminas poetical work in the whole Croatian literature (approx. 32 500 verses): Poviest vanđelska bogatoga a nesretna Epuluna i ubogoga a čestita Lazara, usually referred to by the later editors, according to the subtitle in the original, as Bogatstvo i uboštvo. This religious-philosophical epic is poetically inconsistent but stylistically marked (it is written, beside Split Čakavian, in Ijekavian–Ikavian Štokavian).
