TMZ reports:


In a Monday morning Facebook post, Robert's wife Luciana wrote ... "Yesterday we said goodbye to my beloved husband, cherished friend, and one of the greatest actors of our time. Bob passed away peacefully at home, surrounded by love and comfort."

She added ... "His passion for his craft was matched only by his deep love for characters, a great meal, and holding court. For each of his many roles, Bob gave everything to his characters and to the truth of the human spirit they represented."

Luciana asked for privacy for the family as they celebrate his memories.

What a great actor and person!

Loved watching Lonesome Dove, and him always wanting a poke