Paul Stanley‘s mother, Eva Eisen, died on Saturday (September 29) of undisclosed causes at age 88. Eisen was born in Berlin, Germany and was instrumental in Stanley‘s development as a musician. Stanley, who recently wrapped up his tour dates with KISS and MÖTLEY CRÜE, co-produced KISS‘ new album “Monster”, which will be released on October 9.

Writing on his official web site, original KISS guitarist Ace Frehley stated, I was very saddened to hear of the passing of Paul Stanley‘s mother Eva. She always had a smile on her face at the KISS shows she attended in New York and was always very gracious to me and my family when we’d meet backstage before and after concerts… My deepest sympathy goes out to Paul and his family. God bless.”

Stanley posted a tribute on the official web site, saying: “My mother found so much pleasure and fulfillment in all the various types of music that she so loved. It was through her that I too found that same passion. She lived long enough to see, enjoy and love an extended family that included her children, grandchildren and great grandchildren. She found numerous ways to contribute to her community and was appreciated and loved by those who knew her. My mom was the matriarch of our family and words cannot express our loss.”

Gene Simmons, Eric Singer and Tommy Thayer added their own tribute, saying: “From the earliest days of KISS until recently, Eva was always seen by fans at New York-area shows. We send our deepest sympathies to Paul and his family. Our thoughts and prayers are with you.”

Frehley performed with KISS from its inception in 1973 until his first departure in 1982 before rejoining KISS in 1996 for a very successful reunion tour. Frehley‘s second stint lasted until 2002 as Ace went back to being a solo artist again.