J'ai reussi du premier coup en anglais.

If you're referring to a "David Mayer" from a wealthy or prominent family, it could point to a historical or contemporary figure. One notable example might be David Mayer de Rothschild, a member of the famous Rothschild banking dynasty. He is an environmentalist, adventurer, and advocate for sustainability.

The Rothschild family is one of the most well-known and affluent families in history, with significant influence in banking, philanthropy, and politics.

If you meant someone else, feel free to provide more context!