Cary Elwes has written an online tribute to Rob and Michelle Reiner, honoring their lives and legacy, several weeks after their passing, according to The Hollywood Reporter.

Elwes first met the director of This Is Spinal Tap when he was cast as Westley in the 1987 fantasy classic The Princess Bride, and the two developed a close friendship that they maintained over the decades. They would collaborate again in 2015‘s Being Charlie.

Now, Elwes has posted a tribute to the couple on Instagram with behind-the-scenes footage from The Princess Bride. In the post, he said:

“Enough time has passed that I can finally put my grief into words…The first thing I noticed about Rob was that he wore his heart on his sleeve…This was a man who felt deeply. Whose heart was filled with love and compassion.”

The actor went on to praise Reiner’s skill and views as a filmmaker:

“He used to say to me, ‘Once the movie is released, it belongs to other people. But while you are making it, that’s your time on the planet, so you wanna make it good.’ And boy was my time with him on The Princess Bride beyond great…I can’t remember a single day without laughter. The movie is about love, loyalty, and sacrifice. Things that Rob held dear…”

Elwes also spoke fondly about the director’s wife, Michelle, saying:

“Besides being a gifted photographer, she was an incredibly loving, intelligent person…Deeply passionate about her family and about lifting others up. To say that they were a great team would be an understatement…In a town where many talk the talk…they truly walked it.”

He concluded by referencing some of his character’s lines from The Princess Bride, saying:

“Because my heart still aches every time I think of you, I know the grief of losing you too soon will likely never go away…Sure, death cannot stop true love, but life is pain without you.”

The Reiners were found deceased in their Brentwood, California home on December 14th. Their son, Nick, who co-wrote and was the inspiration for Being Charlie, has since been charged in connection with their deaths.