typo in above, AL died in 1904 (born in 1843)...
Benedetto Croce studied with and was influenced by Labriola for brief time that he considered himself a marxist around turn of 20th century. While Gramsci adopted AL's use of 'philosophy of praxis' to describe marxism (been some time since I read AG, did he does so before prison or as part of attempt to circumvent fascist censors?), he paid more attention to Croce who he considered 20th century Hegel given BC's influence in Italy in 1920s. Hence, Gramsci undertook detailed critique of Croce in manner that Marx had done with Hegel.
Croce was an Hegelian philosopher of history critical of positivism & scientism *and* a political activist who was Italy's education minister prior to fascism. Although he wasn't a fascist, BC had a brief flirtation with Mussolini's government claiming that he might possible introduce ethical element that would moderate fascist influence. He would become public opponent of Mussolini who may have been spared prison because of his international status. Michael Hoover