बरनउं रघुबर विमल जसु, जो दायकु फल चारि॥ और देवता चित्त न धरई। हनुमत सेई सर्व सुख करई॥ The authorship on the Hanuman Chalisa is attributed to Tulsidas, a poet-saint who lived within the sixteenth century CE. He mentions his identify in the last verse of your hymn. It https://www.youtube.com/watch?v=ufkmD95y7fE