Del. Code Ann. tit. 12, § 1572
Effect of adjudication for or against personal representative
59 Del. Laws, c. 384, § 1; 70 Del. Laws, c. 186, § 1;
In the absence of fraud or collusion, an adjudication rendered in the domiciliary jurisdiction or any ancillary jurisdiction in favor of or against any personal representative of the estate is as binding on the local personal representative as if the representative were a party to the adjudication.