The veteran British actress died on 17 June. Her death comes just a week after her 'Blackadder' co-star Rik Mayall passed away aged 56 on June 9, reported Contactmusic.
"Very saddened to hear that Blackadder has lost another amazing actor. RIP Patsy Byrne aka Nursie aka Bernard. You and Flashheart can flirt for an eternity now," a message on the 'Blackadder' Facebook page reads.
Mayall's Lord Flashheart character famously flirted with Byrne's Nursie in the show.
Her fellow 'Blackadder' castmember Stephen Fry took to Twitter to express his grief.
"Oh lord no! I've just heard that Patsy Byrne, darling Nursie has died. Hope St Bernard has welcomed her to eternal rest. Adorable woman," he tweeted.