1.

Is the Spanish rule on compatibility of benefits established in Article 163(1) of the [Ley General de la Seguridad Social] (General Law on Social Security), as interpreted by case-law, which prevents two permanent disability benefits awarded under the same Social Security scheme being deemed compatible, while benefits awarded under different schemes are deemed compatible, even if, in both cases, entitlement has been earned by virtue of separate contributions, contrary to the European rules established in Article 4 of Council Directive 79/7/EEC of 19 December 1978 on the progressive implementation of the principle of equal treatment for men and women in matters of social security, (1) and Article 5 of Directive 2006/54/EC of the European Parliament and of the Council of 5 July 2006 on the implementation of the principle of equal opportunities and equal treatment of men and women in matters of employment and occupation (recast), (2) given that the Spanish legislation may give rise to indirect discrimination on grounds of sex or gender, having regard to gender distribution in the different Spanish Social Security schemes?

2.

If the reply to the first question is in the negative, could the Spanish legislation be contrary to the aforesaid European legislation if the two benefits relate to different injuries or illnesses?