" We don't sell the wine without touching the vine "
Wine from Chateau Diana Winery
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The Chateau Diana Winery, located in Sonoma County, CA, was founded 30 years ago when Tom and Diane Manning moved from New York to California to pursue their dream of providing high quality California wines for the East coast. Over the course of 30 years, the Chateau Diana Winery has developed a specialty in producing low alcohol wines. Today, the winery is owned by siblings Corey and Dawn (Manning) where they follow the traditions and values their parents adopted when they first began operations.
Date Founded: 1981
Owner: Dawn and Corey Manning
The winery was named after Diane Manning, the mother of brother and sister Dawn and Corey. Tom and Diane Manning started the winery in 1981 on land bought from the former Le Baron Ranch.
Chateau Diana Winery was founded in 1981, but its beginnings were crafted along a career path that would take Tom Manning, and later, his young family on a coast-to-coast journey.
Tom was orphaned as a child and raised by his aunt. Though he never finished high school, he was a hard worker from the age of 14. Sales seemed to come natural to Tom and he moved through the sales ranks of various companies. Eventually, he found a natural fit within the wine industry.
With his young wife Diane and his expanding family, Tom lived in various states, eventually settling in beautiful Northern California. Residing first in San Francisco, Tom was lucky to be involved in the early days of a rapidly growing wine retailing group, Trader Joe’s. The owner personally selected Tom to develop Negociant Wine Brands.
With the rapid sales and success that Tom enjoyed, he seized the opportunity to open his own winery facility in 1981. Affectionately named after his wife, Chateau Diana was born in Healdsburg, Ca. Craig, their eldest son, joined Tom and Diane in this exciting venture. Over the next two years, the Mannings developed new wines within the Chateau Diana brand while also looking for a more permanent home for their winery.
In 1983, a dream was realized with the purchase of the LeBaron Ranch encompassing 60 acres in the Dry Creek Valley. 30 years later, the Manning family honors the LeBaron’s legacy of maintaining a family-owned winery. The business continued to grow with a sales office in Southern California, whom their daughter Dawn runs herself. In 1991, another son Corey joined his sister in the family business.
The period between 1999 and 2001 held many changes for Chateau Diana and the Manning family, saddest of which was the unexpected loss of winemaker, Craig Manning. The continued growth of the business within this family struggle, including necessary expansions to the winery facility, was shouldered by Dawn, Corey, and Craig’s Wife, Donna. Their dedication and commitment to hard work is a deep family conviction and is key to the accomplishments at Chateau Diana. When walking the grounds of Chateau Diana you can feel the love and care Craig Manning put into the winery before his passing. He is gone but never forgotten.
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The Black Oak Cabernet Sauvignon is garnet red in color, refreshing and inviting to the palate. The wine’s aromas are layered with rich plum notes and a warm cedar component. The ripe, dark cherry flavors, are reminiscent of decadent blackberries with a nice sprinkling of dried herbs. With a mellow tannin structure, this medium-bodied wine is delicious and well-integrated.
There are wonderful aromas of summer-ripe peaches with tropical fruits and flowers. The silky-smooth flavors are reminiscent of baked apples and toasty vanilla bean. The lively acidity makes this an extremely well-balanced Chardonnay. The finish is long and fruity, with an interesting hint of hazelnuts. This wine’s overall taste profiles is creamy with apricots and lemons.
Black Oak Pinot Noir is made from 100 percent Pinot Noir.
The Black Oak Pinot Noir is a glowing example of what they do best in Puglia, make great wine. Deep ruby in color with a lovely bouquet of sweet spices, even a dusting of cinnamon and nutmeg. The flavors are flowing with ripe black cherry. This medium-bodied wine with its fresh acidity will complement many meal selections.
The Black Oak White Zinfandel is a wonderful warm weather sipper. This is sometimes called our ‘hammock wine’ for lazy days by the river.
Lovely perfume aromas that remind one of ripe melons, honeysuckle in summer, and cherry blossoms in spring. The flavors are bright and delicately sweet, with a very good balance of fresh acidity that lightens up the complex texture. The succulent flavors are of juicy tangerine, white peaches and just picked strawberries. All this with an additional hint of lemon-lime and sass that make this a very approachable and fun wine selection.
Zombie Zin Zinfandel is made from 95% Zinfandel and 5% Syrah
Be careful if you go out at night. The Zombie Zin is designed to be consumed in hiding with the only friends you have left... post apocalypse.
The Zombie Zin is sporting a new label design with a torn look, that suggests a window into another world. The colors are more vibrant earth-tones and the capsule is a deep red.
The Zombie Zinfandel is very dark in color, almost a black-purple. The aromas are of ripe, dense black fruits and a hint of dried herbs. The flavors are complex and rich, sporting succulent blackberries, powdered cinnamon, cola and cherry jam. Just a hint of black pepper in the long finish.
The grapes for the Zombie are sourced throughout California, mostly from the dry, hot sandy soils of the Delta region and the Central Valley. The final blend benefitted from some inky Syrah grapes that came from the Central Coast. The wine was fermented in Stainless Steel and aged for about a half a year in American oak.
Pairs well with bloody BBQ meats, sinister soups with eye of newt, bubbly caldron of fleshy stew.
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I feel this wine expresses the greatness of California and its hidden pockets where Cabernet can excel. The cold Pacific Ocean running the entire length of the state presents maritime influences – and with each small distance eastward the climate warms. Stony soils, south facing slopes and moderately warm conditions are the keys to producing dark, rich and good tasting Cabernet.
A small release from Caymus Vineyards, this wine is a California-appellation Cabernet Sauvignon – supple, dark and rich, bearing the signature hallmarks of Caymus. It is sourced from sites throughout the state which feature climatic conditions, soils and topography that are ideally suited to Cabernet. This project stems from excitement over California's diverse vineyard land, often in lesser-known areas, with the potential to produce exceptional Cabernet.
Obsidian Vineyard Syrah is bathed in terroir. The vines experience severe stress, pushing the roots ever deeper through rock in search of water, producing miniature clusters of intense power. Given the wine’s natural propensity for tannin, we take extreme care in the cellar to chisel/whittle its rough edges and leave room for richness to flatter its distinctive scaffold. The mid-palate supports flavors of roasted coffee beans, sarsaparilla, and dark chocolate. The finish marches on long after most wines have tired.
Our estate vineyard — the six-acre Obsidian Vineyard in the Knights Valley AVA — has an incredibly complex soil structure. It takes its name from a layer of volcanic obsidian rock that was discovered when we drilled for water.
Chocolate ganache, black currants, fig, graphite, and an expansive mouthfeel.
Review:
"Joe Donelan believes his Obsidian Vineyard is one of the world’s greatest sites for Syrah. I’ve visited the site twice, and can say candidly it certainly sits among the most striking vineyards I've ever laid eyes on within the U.S. It sits like a rock on a promontory—two switchbacks to reach the top—and the stones under the top soil, quite literally, never stop emerging from the ground. The place has an ancient, almost sacred, temple-like feel. It is consistently swept by afternoon breezes. The vineyard was replanted in 2017 after fires ravaged it. Winemaker David Milner laid out the site at denser spacing than before, at 2,000 vines per acre to keep yields per vine low while still achieving sensible tonnage, averaging around three tonnes per acre. Viognier was planted for co-fermentations, alongside some Cabernet Sauvignon, for a single vineyard bottling of that grape. ‘God put on his viticultural hat when he designed this site,’ says Milner. The vineyard is planted with ENTA 174, 877, and Alban 1 clones, along with Donelan Heritage selections certified virus-free. The wine, the 2023 vintage release (the first from the new vines), was aged for 21 months in 36% new oak and co-fermented with 1.8% Viognier, using 32% whole clusters. And it is positively gorgeous: composed of nine different blocks, each fermented separately, then assembled through sequential blending, with no racking until bottling. From just five-year-old vines, this wine is utterly extraordinary—something oddly achievable from young vines on rare occasion. I tasted this wine from the same bottle over three days. While the high-toned espresso-bean and cedar accents are present at first pull of the cork, they mellow out a day later, and the fruit profile is so vibrant. This is the sign of an excellent wine. I first tasted wines from the Donelan’s Obsidian Vineyard years ago at Tasting Panel Magazine in the late, great Anthony Dias Blue’s office. Cushing Donelan showed the wines, and to this day, I recall the first moment I put my nose into a glass of Obsidian Syrah. In early January of 2026, as I nosed this brand new release of Obsidian Syrah, I was transported straight back to that tasting twelve years ago. What’s remarkable is that the aromatics are unmistakably the same, yet from these new, more densely planted vines, the aromas are more refined—precision-farmed wines from young vines delivering a level of detail and poise that feels beyond their years. So what’s in the glass? Pure red, black, and blue fruit nuances layered with tobacco, white truffle character, violet pastille, and an intoxicating perfume. White pepper notes emerge on the medium- to full-bodied palate, framed by velvety tannins. Iron-like and crushed slate minerality underpins dazzling black cherry and blackberry fruit, brown spices, and blood orange richness. There’s a velvety, iron-fist quality here that exudes polish, complexity, and undeniable quality. You want to drink it now—and you absolutely can—but it will also reward time in the cellar. Either way, you’ll be utterly wowed. And when you realise the price is under £100, the achievement becomes even more staggering. As these vines mature, what will become of them in subsequent vintages? I suspect that as the vines mature, they'll go in and out of phases, but so long as Mother Nature cooperates, I expect this wine to continue to dazzle each vintage. - Jonathan CRISTALDI"
Decanter (January 5th 2026), 100 points
This is the first vintage of the Obsidian Syrah after wildfires torched the vineyard in 2017, leading to significant redevelopment. Throughout all those years, the Donelans have exhibited remarkable patience and a clear sense of purpose. This is their reward: a truly magnificent, towering wine of the highest level.
Knights Valley is one of the most magical grape-growing districts in the United States, but it is not very well known because only a few estate wineries are located there.
The 2023 Syria Obsidian Estate is one of the most profound, moving wines I have tasted in Sonoma County. Blackberry, gravel, incense, chocolate, lavender, and dried herbs race out of the glass. Delicate yet powerful, the 2023 is spectacular. It is also very fairly priced in today’s market.
Vinous 100 Points
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