"(1) . . .(b) that the balance of fairness (including convenience) as between the parties to the marriage is such that it is appropriate for the proceedings in [another jurisdiction] to be disposed of before further steps are taken in the proceedings [in England] ... (2) In considering the balance of fairness and convenience . . . the court shall have regard to all factors appearing to be relevant, including the convenience of witnesses and any delay or expense which may result from the proceedings being stayed or not being stayed."
"In order to justify a stay two conditions must be satisfied, one positive and the other negative: (a) the defendant must satisfy the court that there is another forum to whose jurisdiction he is amenable in which justice can be done between the parties at substantially less inconvenience or expense, and (b) the stay must not deprive the plaintiff of a legitimate personal or juridical advantage which would be available to him if he invoked the jurisdiction of the English court."
"can only be justified if the would-be plaintiff can establish objectively by cogent evident that there is some personal or juridical advantage that would be available to him only in the English action that is of such importance that it would cause injustice to him to deprive him of it."
"Suppose that two parties had been involved in a road accident in a foreign country, where both were resident, and where damages are awarded on a scale substantially lower than those awarded in this country, I do not think that an English court would, in ordinary circumstances, hesitate to stay the proceedings brought by one of them against the other in this country merely because he would be deprived of a higher award of damages here."
"(6) Schedule 1 to this Act shall have effect as. to the cases in which matrimonial proceedings in England and Wales are to be, or may be, stayed by the court where there are concurrent proceedings elsewhere in respect of the same marriage, and as to the other matters dealt with in that Schedule; but nothing in the Schedule - (a) requires or authorises a stay of proceedings which are pending when this section comes into force; or (b) prejudices any power to stay proceedings which is exercisable by the court apart from the Schedule."
"9. (1) Where before the beginning of the trial or first trial in any matrimonial proceedings which are continuing in the court it appears to the court - (a) that any proceedings in respect of the marriage in question, or capable of affecting its validity or subsistence, are continuing in another jurisdiction; and (b) that the balance of fairness (including convenience) as between the parties to the marriage is such that it is appropriate for the proceedings in that jurisdiction to be disposed of before further steps are taken in the proceedings in the court or in those proceedings so far as they consist of a particular kind of matrimonial proceedings, the court may, if it thinks fit, order that the proceedings in the court be stayed or, as the case may be, that those proceedings be stayed so far as they consist of proceedings of that kind.
"It was not, his Lordship thought, a very attractive exercise to compare the remedies offered by one jurisdiction with those offered by another. Nor was it very helpful in terms of fairness, because what was fair for one party may seem to have an equal and opposite effect on the other."
"In order to justify a stay two conditions must be satisfied, one positive and the other negative: (a) the defendant must satisfy the court that there is another forum to whose jurisdiction he is amenable in which justice can be done between the parties at substantially less inconvenience or expense, and (b) the stay must not deprive the plaintiff of a legitimate personal or juridical advantage which would be available to him if he invoked the jurisdiction of the English court."
"What seems to me to be conclusive is that on the basis of the evidence as to French law which this court has received, it is entirely clear that the right of the wife to claim financial ancillary relief from the husband in the French jurisdiction would be eliminated or reduced by means of a relevant finding against her in the divorce suit itself; with the consequence that, in order to preserve that right, or preserve it to its full extent, it would be entirely necessary for her to contest both the divorce suit itself and the ancillary proceedings, and that would necessarily involve a larger expense than would the corresponding litigious activity in this country which would require the wife to contest only the ancillary proceedings in order to preserve her rights in relation to that part of the jurisdiction."
"Where a suit about a particular subject matter between a plaintiff and a defendant is already pending in a foreign court which is a natural and appropriate forum for the resolution of the dispute between them, and the defendant in the foreign suit seeks to institute as plaintiff an action in England about the same matter to which the person who is plaintiff in the foreign suit is made defendant, then the additional inconvenience and expense which must result from allowing two sets of legal proceedings to be pursued concurrently in two different countries where the same facts would be in issue and the testimony of the same witnesses required, can only be justified if the would-be plaintiff can establish objectively by cogent evidence that there is some personal or juridical advantage that would be available to him only in the English action that is of such importance that it would cause injustice to him to deprive him of it."
"Looking at it objectively from England, without regard to any question of jurisdiction under French law, the French court was a natural and appropriate forum for the resolution of a dispute between two French nationals who had been married in France, where there was a great deal of family fortune in France and French traditions on both sides."
"I take the view, in the light of this provision in Article 280-1, though I would not go so far as the President did as to describe it as a harsh provision, that it is a serious disadvantage to the wife if the English proceedings are stayed and financial provision has to be dealt with in France. Compared with France, she has a significant personal and juridical advantage in continuing an application for financial provision in England. It would be unjust to deprive her of it."