At that time he wrote several elegies such as Ad Andream Cricium, De Cricio Cracovia eunte, and Vitae archaepiscoporum Gnesnensium for his patron.
After Archbishop Krzycki died, Janicki worked under patronage of Count Piotr Kmita and wrote Querella Reipublicae Regni Poloniae i Ad Polonos proceras.
In 1538 Count Sobieński sponsored his studies in Padua, where he met Piotr Myszkowski, Filip Padniewski and Andrzej Zebrzydowski.
Janicki died in January 1543; his last work, Epithalamium Serenissimo Regi Poloniae, Sigismundo Augusto, was found by his heirs Jan Antonin and Augustinus Rotundus who decided to publish it.
With the title of his collection of poems Tristium Liber, the poet clearly refers to Ovid's elegies written in exile, Tristia.
Poem, which refers to the events of the nobles' rebellion known as the Chicken War, through the words of personified Poland, the artist complains about the nobility, magnates especially, their internal quarrels and their private interests.