Reading the Breitbart you'll notice that Nancy P. is said to have officiated at the very lavish wedding.
-NW

Revealed: Gavin Newsom Skipped Climate Summit for Billionaire Oil Heiress’s Wedding
JOEL B. POLLAK
Breitbart
9 Nov 2021

[snip]

California Gov. Gavin Newsom skipped the Glasgow climate summit and attended the wedding of billionaire heiress Ivy Getty last weekend instead, according to a glowing Vogue magazine on the elaborate, lavish affair in San Francisco.

Speculation had surrounded Newsom’s disappearance since Oct. 27, when he received a coronavirus vaccine booster shot. Despite announcing his plans to attend the summit on climate change — a key issue for Newsom — he canceled, suddenly.

Newsom’s office cited “family obligations,” but said nothing more; his wife, California First Lady Jennifer Seibel Newsom, suggested in a now-deleted tweet that her husband may have been “just in the office working” or spending time with his kids.

It now appears the “family obligations” involved the Getty family, the oil dynasty to which Newsom has close family ties.