Original sentence: In the twentieth century the Hôtel Lambert was discreetly split into several  luxurious apartments; it was once the home of actress Michèle Morgan and of Mona von Bismarck and to Baron Alexis de Rédé who rented the ground floor from 1949 until his death in 2004; he entertained there his lover Arturo Lopez-Willshaw, who continued to maintain a formal residence with his wife, Patricia, in Neuilly: the gentlemens' dinner parties were at the center of le tout Paris
Edited sentence: In the twentieth century the Hôtel Lambert was discreetly split into several  luxurious apartments; it was once the home of actress Michèle Morgan and of Mona von Bismarck and to Baron Alexis de Rédé who rented the ground floor from 1949 until his death in 2004; he entertained there his lover Arturo Lopez-Willshaw, who continued to maintain a formal residence with his wife, Patricia, in Neuilly: the gentlemen's dinner parties were at the center of le tout Paris