Generally no, all communication between husband and wife is what is called Spousal Privilege that states one may not force a wife to testify against her spouse. However, the Spousal Privilege may be breached by an exception to the rule.
A parent company is a company that owns enough voting stock in another firm (subsidiary) to control management and operations by influencing or electing its board of directors. A parent company could simply be a company that wholly owns another company.
By selling the Lever company's assets outside Great Britain, including Lever Brothers Company in the United States, to the Dutch arm of Unilever, the assets of the two groups were redistributed so that they would be nearly equal in volume and profits, which had always been the objective of the two parent companies.