Rose Georgia Giannis

February 9, 1940 ~ April 24, 2021 (age 81)


Rose Georgia Giannis passed away peacefully at home on Saturday April 24th, surrounded by loved ones.  Born on February 9, 1940 in Detroit, MI, to her mother and father Elly and George Koosis.  After receiving her teaching credential from Wayne State University, Rose ventured out to California at aged 26.  It was there where she met her husband of nearly 51 years, Demetrios Giannis. They married in 1970 and had four children: Xenophon, Socrates, Aristotle and Eleni. When they were first married, they lived in San Mateo, CA where Rose taught elementary school in Half Moon Bay.  They soon bought a restaurant in Sonoma, California known as The Sonoma Grove. Sonoma is where they lived most of their lives and where they happily raised their children. After taking some time off teaching to raise her children, help with the restaurant, and dabble in real estate, she went back to teaching until retiring at age 65.  Rose spent her retired years, volunteering at the hospital, working voter polls, taking cruise adventures and with her thirst for knowledge was continually involved in new activities. She was never afraid to try the unknown.  Rose and Demetrios had recently moved to American Canyon.

Rose was a devoted wife and mother who loved her family greatly.  She had a curious nature, and easily expressed herself. She was honest and loving.  We will miss Rose’s warm smile, bright social spirit and hearty laugh.  She loved to be around people and could befriend any stranger. 

Rose is survived by her husband, Demetrios, three sons: Xenophon, Socrates, Aristotle, a daughter; Eleni, Brother; Thomas Koosis and four grandchildren, Xavier Evelyn, Nicolas, and Mia. 

Services will be held at 12:30 p.m. on Thursday 4/29 at Saints Constantine & Helen Greek Orthodox Church 1224 Alabama Street, Vallejo, CA

Due to Covid restrictions occupancy is limited.

Reception at the Giannis household in American Canyon will follow if you cannot attend the service.






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