Lawrence, a deacon in Rome during the third century, was asked to present the Church’s treasures for confiscation by Roman authorities. With quick wit, Lawrence abided by bringing forth the Church’s beloved poor and misfortunate (the true treasures of the Church). For his contemptuousness, Lawrence was tied to a grill and burned. Perhaps as a nod to the saint’s unceremonious style, the nature of Lawrence’s death has made him the patron saint of cooks, bakers, chefs and grillmasters.
(There's an old tale that while being burned alive, Lawrence said, "Turn me over, I'm done on this side." It's probably not true, but that story is the reason he is also the patron saint of comedians!)