 Complete the following phrase:  Given the stalemate, Bivoni and Monroy suggested payments to key Polish officials to get the deal executed; apart from Kazanowski the person identified as key decision-maker was Jerzy Ossoliński, an experienced statesman handling a number of diplomatic tasks. Though the Spaniards initially considered paying both Kazanowski and Ossoliński, they eventually decided to focus on the former; the sum intended for him including the markup for Bivoni was 20,000 thaler. However, this helped little. In mid-1640 Bivoni told Medina that in new circumstances, the deal had to be re-negotiated. The viceroy of Naples firmly opposed re-opening of closed agreement, but Madrid was in increasingly difficult position. Apart from a string of military defeats there was a rebellion in Catalonia and tension was 